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Kudos1 Stats

Norton Security causing high CPU Usage

Norton Security appears to be causing an unusual loading on the Computer's CPU and, by extension, the CPU fan sub-system.

Replies

Kudos0

Re: Norton Security causing high CPU Usage

Hi @funmi_Bash,

Thanks for reporting this issue.

I've sent you a Private Message requesting details, Please check it when you get a chance.

    Mohanakrishnan G | Norton Forums Administrator | Symantec Corporation
    Kudos0

    Re: Norton Security causing high CPU Usage

    Ho Mohan,

    Since a few day I have been suffering of the same problem. Norton Security is taking up 50% of the CPU capacity and I can't stop the process. Not even when trying with Taskmanager to end the task. Fan is running like crazy. Could you include me please in the private mail that you send to previous @funmi_Bash.

    Much appreciated!

    Kudos0

    Re: Norton Security causing high CPU Usage

    Hi John, we released a hotfix a few days ago that should address the high CPU usage during scanning. I recommend that you run LiveUpdate and reboot your system (without fast startup), and try the scan again. Please let us know if this is resolved for you. Thanks.

    Tony Weiss | Norton Forums Global Community Manager | Symantec Corporation
    Kudos0

    Re: Norton Security causing high CPU Usage

    That hotfix did not fix the problem at all. Me and others continue to have high cpu spikes while running a full scan. Common thing I am seeing. We have ssd's. It hammers my i7 4790K @95-100%.

    https://community.norton.com/en/forums/ns-v227076-full-scan-pounds-cpu-c...

    Now when it scan my HDD. We see "normal" cpu usage. Take a look.

    SSD

    HDD

    Call me sour or butthurt what ever. But, if requested or asked. I will NOT be providing logs etc to help you guys figure it out either. I am tired of doing that and receive nothing back as a thank you. I know the folks over there get paid good money as well. My time is money to. No more freebies. Get it together over there. I think others should stop giving them free support to fix things as well. Maybe move onto another better product.  

    You release a so called hotfix and it is still NOT FIXED. It makes Symantec/Norton look really bad and incompetent. 

    Kudos0

    Re: Norton Security causing high CPU Usage

    Tony,

    This problem is not solved. It is an active issue of the highest importance given 22.7.076 it is turning similar machines with i7-4790 class CPUs and SSDs into toasters, Please see  https://community.norton.com/en/forums/ns-v227076-full-scan-pounds-cpu-c...

    Kudos0

    Re: Norton Security causing high CPU Usage

    I noticed the high usage last night (July 7,2016) and tried the Live Update and then reboot procedure without fixing the problem.  Update claimed to have found and installed 2 fixes.  I shut down for the night.

    Today at 10:50 am (Eastern Daylight) I started up, still saw < 80% CPU .  Ran Live update (found and installed 4 fixes this time.  After restart, Norton Security is hovering around 0.1%, so the issue is solved for me.  Thanks to the forum for the help.  It seems to me that the main Norton help screens should note this issue and the fix (which seems to have only been accomplished last night).

    Kudos0

    Re: Norton Security causing high CPU Usage

    Did you try doing a Full scan or one of the Disk or File scans?

    That is when my system pegs and it pegs on both SSD and HDD on my 3 systems.

    Jim

    Kudos0

    Re: Norton Security causing high CPU Usage

    You could try disabling the Compressed File Scan, if not already done

    That takes a while, and if/when that file is opened Norton will scan it then.

    Fwiw I am running Kaspersky Internet Security at the moment, and on a full scan IT pegs the CPU at 100% at times, so Norton is not alone there.

    Windows 10 Home X 64 Norton Security Premium Current
    Kudos0

    Re: Norton Security causing high CPU Usage

    It has never pegged my i7 4790K 80-100% ever. Until this latest version hit. Even with the hotfix. I also have 2 other systems with i7's. 2600 and 3770. It does the same thing to those. I also have a newer laptop Dell XPS 13 with a i5. Its also doing the same. Guess what the common theme is? All of them have ssd's. HDD's are not effected with this bug. 2 of my systems have both ssd and hdd. When it starts scanning the hdd's. We see normal 10-15% cpu usage. All my systems are running Windows 10 64 bit. 

    I submitted my requested information to Norton. They have the logs and now its up to them to figure it out. Then issue a fix. I would imagine they are also reaching out to others with this same bug. 

    Kudos0

    Re: Norton Security causing high CPU Usage

    Me too running 22.7.0.76. 

    Kudos0

    Re: Norton Security causing high CPU Usage

    Me too running 22.7.0.76.

    Kudos0

    Re: Norton Security causing high CPU Usage

    Hi @FattiesGoneWild, Thanks we have received your logs uploaded.

    @Cliffordj, @PhoneMan  & @Bandolier1 - Thanks for reporting this issue. I've sent you a private message requesting logs and more information on this issue via the forum. Please check it when you get a chance.

    Sunil_GA | Norton Forums Administrator | Symantec Corporation
    Kudos0

    Re: Norton Security causing high CPU Usage

    Hi guys, i was having the same problem, my laptop conf is:

    Tech Support Guy System Info Utility version 1.0.0.2
    OS Version: Microsoft Windows 10 Pro, 64 bit
    Processor: Intel(R) Core(TM) i7-4700MQ CPU @ 2.40GHz, Intel64 Family 6 Model 60 Stepping 3
    Processor Count: 8
    RAM: 16316 Mb
    Graphics Card: NVIDIA GeForce GT 740M, -2048 Mb
    Hard Drives: C: Total - 952441 MB, Free - 705444 MB;
    Motherboard: Hewlett-Packard, 1966
    Antivirus: Norton Security, Updated and Enabled

    And NIS was sucking all available cpu in some cases up to 95%, first I thought it was a virus, but that was not the case, the solution that worked for me was really simple. Go to your NIS dashboard an click on "help", then click "get support" the program run some kind of autocheck and detected something wrong with NIS, a patch was aplied and a reboot was asked, after that problem solved.

    Hope this help you because it take me a lot to figure it out.

    Regards.

    Kudos0

    Re: Norton Security causing high CPU Usage

    Hello.

    For the 3:rd day in a row NS 2016 (Norton Security 2016) takes a lot of CPU power, somewhere between 70 - 75%.
    i have done a malware scan with both MBAM & NS 2016 and neither found any malware at all.

    i have posted three screen dumps with more than 30 min apart

    As you can imagine, this takes a pretty hefty toll on the CPU, so i need a prompt solution, or i will have to uninstall Norton.

    Here are my system specs:

    Computer type: PC/Desktop

    System Manufacturer/Model Number: Self Built

    OS: Windows 10 Pro. 64-bit

    CPU: Intel - i7 2600k @ 3.4 GHz

    Motherboard: Asus ROG - Maximus IV Extreme-Z

    Memory: 16 GB

    Graphics Card(s): Nvidia GTX 970

    Sound Card: Realtek HD Audio (Motherboard)

    Monitor(s) Displays: BenQ

    Screen Resolution: 1920*1080

    Hard Drives:

    C: - 250 GB SSd
    D: - 1 TB SATA
    E: - 500 GB SATA
    F: - 1 TB SATA

    PSU: Crosshair 750W

    Case: Antec

    Cooling: 5 inlet Fans, 1 big outlet fan

    Keyboard: Logitech K800

    Mouse: Logitech Preformanc MX

    Internet Speed: 100/10 Mbit

    Browser: Firefox & Internet Explorer

    Antivirus: Norton Internet Security 2016

    Other Info: Malewarebyte Anti-Malware (Premium)

    Kudos0

    Re: Norton Security causing high CPU Usage

    Recently installed the most recent update, and it's absolutely destroying my computer's performance right now. If this isn't solved within the next day or two, I'm going to have to uninstall NIS altogether. I can't even run a word processor right now without MASSIVE hanging. This is completely unacceptable.

    Attached is a screenshot of the Task Manager and my system specs. Additionally, I have a GTX 970 vid card and SSD HDs.

    Need this rectified as soon as possible.

    File Attachment: 
    Kudos0

    Re: Norton Security causing high CPU Usage

    Hi @Conny Wendt & @TheMig,

    Sorry for the inconvenience caused. I've sent you a private message requesting more information on this issue via the forum.  Please check it when you get a chance. Thanks. 

    Sunil_GA | Norton Forums Administrator | Symantec Corporation
    Kudos0

    Re: Norton Security causing high CPU Usage

    Can you include me on this serious problem with Norton?  It's using up electricity and burning up all 5 of my systems!

    After I updated my subscription a week or so ago this started happening.  Norton starts running something in the background that I can not see or find (nothing shows as running in background tasks and I've turned off idle time processing) yet its chewing up my CPU and RAM and over heating my systems.  The only fix so far is to uninstall Norton and then, no problems with CPU, RAM and Fans.

    Please fix or refund my money!

    Kudos0

    Re: Norton Security causing high CPU Usage

    Hi @dave Lynch,

    Sorry for the inconvenience caused. I've sent you a private message requesting more information on this issue via the forum.  Please check it when you get a chance. Thanks. 

    Sunil_GA | Norton Forums Administrator | Symantec Corporation
    Kudos0

    Re: Norton Security causing high CPU Usage

    I have the same problem. CPU is running around 50-60% for Norton 32-bit program and my cpu fans are screaming :(

    Could running chrome and/or spotify have something to do with it? (trying to run without them running and so far cpu is low)

    Kudos0

    Re: Norton Security causing high CPU Usage

    95% usage on my i7 6700k, my pc stutters every minute because of norton using all cpu while IDLING

    this is ridiculous, yesterday it was still 50-60% and after liveupdate today it went to 90%+ all time since boot, i can't do anything on pc properly. uninstalling norton until their "competent" engineers fix this is my only option.

    Kudos0

    Re: Norton Security causing high CPU Usage

    I have the same problem on my PC with Windows 10, Core i5 4670 and Norton Security 22.7.0.76.
    After a reboot (not shutdown) it works fine for a while but then the norton security process causes 25% - 90% CPU usage.

    Kudos1 Stats

    Re: Norton Security causing high CPU Usage

    Admin,

    I have completely uninstalled Norton from 2 of my 5 systems and then downloaded and reinstalled from Norton from scratch and the problem appears to have reduced / gone away for now.  I have been running the systems for about 4 hours and have not had a CPU / Memory spike yet.

    Kudos0

    Re: Norton Security causing high CPU Usage

    Why this issue is not fixed - we are paying for product and are ignored - looks like this happens to almost all i7 users ... same here i7 3770 and all the time 50%+ cpu usage

    Kudos0

    Re: Norton Security causing high CPU Usage

    This does not look like a solution - it uses our time to fix product which we paid for

    Kudos0

    Re: Norton Security causing high CPU Usage

    I found that if a Norton Scan is performed and Windows updates while the scan is in progress, the CPU usages for Norton jumps to 90-100% on all five core I7 systems I use.  Hope this helps.

    Kudos4 Stats

    Re: Norton Security causing high CPU Usage

    Hi everyone,

    After discussing this with several teams regarding expected behavior, we’ve realized that this high CPU usage during a Full System Scan in 22.7 is to be expected. I realize some customers will be upset about this, and probably with good reason. But please let me explain things first. I welcome all comments and perspectives, and will be sure that it is shared with the product team.

    Why is the high CPU usage during a Full System Scan expected?

    We designed the Full System Scan to work hard to scan the system quickly and thoroughly, which requires a lot of the system resources. Full System Scan is only one aspect of our multi-layered security system, and really only useful to detect and remove dormant threats on your system. We are also faced with an ever-increasing average data size for customers. That’s more files to scan, with the expectation that it won’t take significantly longer to scan them. We also have more malware to scan for, as well. More files, more threats, in the same amount of time. This process requires a lot of system resources to complete in a timely manner. That’s not just for Norton – many other security products have the same situation.

    For this reason, we’ve developed several different layers of security that don’t require that system resource-intensive scanning. They are active layers of protection (like SONAR, Auto-Protect, Smart Firewall, Intrusion Prevention, Email protection, Browser Protection, and Download Intelligence) that are always running, always protecting you. There are also situations where you might have dormant files which are not scanned, added a new hard drive, new USB, etc. The Full System Scan would help us catch dormant threats in this case.

    If it’s not as useful as the rest of the layers, why is it still in the Norton product?

    The Full System Scan is still in the Norton product for a few reasons. The biggest reason is that it’s a layer of security that customers still rely on. Customers expect to have a computer security product with the ability to scan every file on the system. And clearly people still use it. We make products for customers, and while we continue to provide lightweight, nimble security layers, customers continue to lean on a Full System Scan. That’s why we keep it.

    I still want to use the Full System Scan. Since it is going to use up a high percentage of system resources, what do you recommend?

    We recommend that if you want to run a Full System Scan, you should schedule it when your system is idle. That usually means overnight, or a regular time when you know the system won’t be in use. And the Scan Scheduler also has some options, like only running the Scan if the system is Idle, or when on AC power (for laptops, to prevent power draining). In our “How to run scan on Norton Security for Virus, Spyware, and Security Threats" (video) we show customers how to run the scan when the system is idle.

    I hope this has explained what you should expect with Full System Scan going forward, as well as a little about how our Layered Security system works. I encourage you to ask questions, and let us know how you feel. Thanks.

    [Edit: removed incorrect information about what to expect when running a manual Full System Scan and other programs.]

    Tony Weiss | Norton Forums Global Community Manager | Symantec Corporation
    Kudos0

    Re: Norton Security causing high CPU Usage

    Tony,

      The high CPU usage also occurs during a Quick Scan during a Windows Update.  The CPU usage for Norton goes to 90-100%.  The CPU usage stays at this level even after the update has finished.  The only way to get the CPU usage to go to normal is to reboot.

    Kudos1 Stats

    Re: Norton Security causing high CPU Usage

    THIS IS WRITTEN IN ALL CAPS BOLD DELIBERATELY BECAUSE I'M NOT SURE THE NORTON PERSON ON THIS THREAD IS GETTING THE MESSAGE.

    THIS IS ABSOLUTELY INTOLERABLE.  I'VE BEEN A NORTON CUSTOMER FOR YEARS NOW, GOING ALL THE WAY BACK TO THE ORIGINAL NORTON.  NOTHING LIKE THIS HAS EVER HAPPENED BEFORE.  MY NORTON SECURITY WAS WORKING JUST FINE UNTIL THAT LAST FORCED UPGRADE A COUPLE OF DAYS AGO REQUIRING A RESTART AND ALL OF A SUDDEN THE SOFTWARE IS TAKING OVER 50% OF MY CPU WHAT LOOKS LIKE PERMANENTLY.  RIGHT NOW GOING ON 30 MINUTES AFTER MY LAST REBOOT TO TRY TO CLEAR THIS.  AND NO END APPEARS TO BE IN SIGHT.  

    WTF IS NORTON GOING TO DO TO RESTORE THIS TO A FUNCTIONAL LEVEL?  I DON'T WANT TO HEAR EXCUSES OR EXPLANATIONS.  I DON'T HAVE TIME TO WADE THROUGH COMPLICATIONS.  IT WAS WORKING FINE ON SUNDAY 7/10/2016 AND IT'S NOT FINE  NOW.  SO JUST FIX THE BLOODY THING.  NOW!  IS THE MESSAGE COMING THROUGH YET YOU HAVE SOME PO'ED CUSTOMERS?

    OR GIVE ME A FULL REFUND SO I CAN GO BUY SOFTWARE THAT ACTUALLY DOES THE JOB WITHOUT TAKING OVER MY COMPUTER.  I COULD FRY AN EGG ON MY COMPUTER NOW IT'S SO HOT.  I'M AFRAID THAT THIS COULD DAMAGE MY HARDWARE REQUIRING ME TO PURCHASE A NEW COMPUTER.  CAN NORTON SPELL "SMALL CLAIMS COURT CASE"?

    Kudos0

    Re: Norton Security causing high CPU Usage

    BTW, RE TONY'S MESSAGE.  THIS KIND OF SNEERING AND CONDESCENSION FROM SYMANTEC IS JUST AN INDICATION OF HOW MUCH IN DENIAL THEY ARE.  OBVIOUSLY WE'RE, AS PAYING CUSTOMERS (EMPHASIZE PAYING HIS SALARY), ARE TOO STUPID TO USE THEIR SOFTWARE.  HEY TONY, THIS HAS NEVER HAPPENED BEFORE SO COME DOWN OFF YOUR HIGH HORSE AND ACCEPT THAT THERE IS AN ISSUE THAT THE NEW DOWNLOAD CAUSED.

    TONY'S BEHAVIOR, WITHOUT AN IMMEDIATE APOLOGY AND A COMMITMENT TO FIX THIS, IS BENEATH CONTEMPT AND BENEATH A COMPANY WHO ACTUALLY CARES ABOUT THEIR CUSTOMERS.  BUT MAYBE SYMANTEC IS PAST ALL OF THAT.

    QUOTE FROM TONY'S 7/12/2016 5:35PM POST:

    "You should expect the CPU percentage to rise even higher if you're simultaneously running a Full System Scan and other programs. This should be no surprise to anyone who has even a modicum of experience with computers, but it bears stating explicitly."

    WHAT BEARS STATING EXPLICITLY IS THAT UNTIL TWO DAYS AGO I WAS QUIETLY ENJOYING THE NORTON SECURITY SOFTWARE.  I HAVE MADE ZERO CHANGES TO THE CONFIGURATION.  A NEW VERSION WAS INSTALLED AND NOW IT'S ALL F'ED UP.

    THIS IS A BUG.  THIS SHOULD BE NO SURPRISE TO ANY SOFTWARE COMPANY THAT HAS EVEN A MODICUM OF EXPERIENCE WITH COMPUTERS (AND CONCERN FOR THEIR CUSTOMERS).  BUT IT BEARS STATING EXPLICITLY.

    DOESN'T IT?

    PEGGED AT 50% GOING ON 40 MINUTES NOW.  

    Kudos0

    Re: Norton Security causing high CPU Usage

    Before we all start writing in all caps and bold, let's discuss what's happening. This thread seems to have a few different people reporting different things. I'd like you to try to identify the issue(s) you're seeing, so we can sort things out.

    1) High CPU usage of Norton processes while running a Full System Scan. If this is your issue, please see my previous post.
    2) High CPU usage of Norton processes while background scans are running, or Quick Scan is running. These should be happening when your system is idle. If you're running a manual/on-demand quick scan, that's a scan. It won't take as long as a Full System Scan, since it targets specific areas for scanning.
    3) High CPU usage of Norton processes while no scan is being run. Firstly, be sure that you are up-to-date with your Norton product. Run LiveUpdate manually, and reboot your system (turn off Fast Startup for this reboot). Run LiveUpdate again, to ensure all updates have been downloaded and applied. If you're still having this issue, please give us some details on your system, what's installed, and any other details about the situation that might be helpful.

    Tony Weiss | Norton Forums Global Community Manager | Symantec Corporation
    Kudos0

    Re: Norton Security causing high CPU Usage

    @Neskowin, I'm sorry. Until a few minutes ago, I didn't know you had this problem. Can you provide some details on the issue you're seeing? What product and version are you running? What actions are you taking around the time the CPU spikes? Any details are helpful. Thanks.

    Tony Weiss | Norton Forums Global Community Manager | Symantec Corporation
    Kudos0

    Re: Norton Security causing high CPU Usage

    Me, too.  Win10 64 bit, 16 GB Ram. AMD FX-8350.  NIS 32 bit process is taking 40% CPU while NOT doing anything (was earlier at 80%).  After a fresh boot.  Also after forcing a full scan / reboot.  Another machine is running at 1%. Both are at ver 22.7.0.76

    I see two NIS processes - one is well behaved, the other isn't.

    Please help!

    File Attachment: 
    Kudos0

    Re: Norton Security causing high CPU Usage

    We are seriously having a failure to communicate here. Many people are upset and complaining about this. Its not acceptable. Everything was peachy until the last update. Not convinced what was said by Tony. Either Symantec is hiding something and having trouble fixing it themselves. Even with logs provided etc. Or this is a simply a deal with it type of attitude and move along with nothing to see.

    Customers will be lost over this. Many. If you guys don't get a handle on this situation and fix it. Its not okay to peg cpu's at 85-100% causing a lot more noise and heat. I can only imagine how laptops are dealing with this atm. Oh my. This cannot and will not be ignored by customers. Its not acceptable either. This is not something Symantec will hope just goes away and boil over. 

    The tidal wave is coming. Many many more will be complaining as the update hits more people.   

    Kudos0

    Re: Norton Security causing high CPU Usage

    WE'RE GOING ON THREE HOURS NOW WITH NORTON PEGGING MY COMPUTER AT 50%.  THIS IS NOT A "SPIKE".  THIS IS A BUG.  I'M DOING NOTHING OTHER THAN REBOOTING THE COMPUTER, RUNNING THE WINDOWS MONITOR AND OF COURSE CHROME SO I CAN ENTER THIS INFORMATION.  NORTON SAYS NO UPDATES.  NO OTHER APPS ARE RUNNING, OTHER THAN THOSE THAT LOAD AT BOOT--AND WHICH NOT, I REPEAT, HAVE NOT CHANGED SINCE THE NORTON UPDATE THAT CAUSED THIS.  STILL IN DENIAL I SEE.  

    AGAIN, DID NOTHING TO MY COMPUTER IN THE LAST FEW DAYS OTHER THAN NORTON AUTOMATICALLY UPDATED, FORCED A REBOOT AND NOW DECIDES IT NEEDS TO PEG MY COMPUTER AT 50%.  COMPUTER HOTTER THAN EVER.  I HAVE TO SHUT IT DOWN NOW AND LET IT COOL.

    SO NOW I HAVE TO SPEND MY TIME CHASING YOUR BUG?  CAN I BILL SYMANTEC AT MY USUAL CONSULTING RATE?  THIS IS ALSO LIKELY TO IMPACT MY PRODUCTIVITY WITH MY CLIENTS WHO COULD CARE LESS ABOUT MY NORTON PROBLEMS.  SO I PAY TWO WAYS.  AND IN THE MEANTIME YOU WANT DATA?  YOU'RE SAYING THAT I'M THE ONLY PERSON HAVING THESE PROBLEMS?  SORRY, NOT BUYING IT.  SYMANTEC IS HIDING SOMETHING.

    Kudos0

    Re: Norton Security causing high CPU Usage

    Same problem here

    Windows 10 64-bit

    Intel core i5 -3320M @2.60GHZ  2.60GHZ ....16G Ram

    SSD 

    99.7%+ CPU usage all the time , online update ran for three times, shut down reboot from cold start, scan finished but all tasks mentioned but still high CPU

    This is a product Bug and no explanation ,,, must fix

    File Attachment: 
    Kudos0

    Re: Norton Security causing high CPU Usage

    norton, my cpu usage was 90%+ all time since boot when norton had absolutely no activity running, had to uninstall this trash to get my computer to normal

    [Edit: Please keep the language clean to conform with the Participation Guidelines and Terms of Service]

    Kudos0

    Re: Norton Security causing high CPU Usage

    Hi @Neskowin, @FattiesGoneWild, @tom0902000, @M.GREISS,

    I have sent you private messages requesting the steps that you took that led to the spike, the applications that were running during the spike, and steps to collect logs. Any information would be helpful. Please check your inbox when you get a chance. Thank you.


    Gayathri R
    Norton Forums Administrator
    Symantec Corporation

    Gayathri R | Norton Forums Global Community Administrator | Symantec Corporation
    Kudos0

    Re: Norton Security causing high CPU Usage

    I have this issue at least on one computer. But I will only know for sure when a user complain. Now I'm running LiveUpdate, but it is barely usable even to live update.

    Kudos0

    Re: Norton Security causing high CPU Usage

    So, I get the PM and installed the logger, etc.  I am waiting to get access to upload the results.

    Here is the interesting part - when running the logger, the 2 NIS processes were not running.  My CPU went down to 1%.

    Maybe I just let the logger run in debug mode until this gets fixed :)

    Kudos0

    Re: Norton Security causing high CPU Usage

    I have the same problem. i7 with Windows 10 and my CPU usage by Norton is 80 to 85%.

    When nothing is running it regularly consumes 80 plus %. My CPU is pegged at or near 100% all the time now. I will have to unistall Norton before it burns my machine up if there is not a fix soon.

    File Attachment: 
    Kudos0

    Re: Norton Security causing high CPU Usage

    @ Tony_Weiss, and/or any other Symantec staff

    Hello

    My problem is somewhat described in no. 3.

    To be able to use my computer this is what i have to do:

    Step 1:

    Turn on computer, wait till it is done starting and everything is loaded (usually takes about 3 min).  Start Norton Security, click on "Help" (over right corner), click on "Get support", wait till it is done, reboot my computer.

    Step 2:

    Enter BIOS just to see when CPU has a temp below 75 degrees Celsius, then exit BIOS and wait for the startup.

    Step 3:

    Check so that Norton is behaving it self, if not, start over from step 1. And when i turn off my computer i have to do it all over again...

    This has been so since 2016-07-09, have have been contacted via pm from "Sunil_GA" and i gave him all the info he wanted, i haven't heard back from him yet.

    Kudos0

    Re: Norton Security causing high CPU Usage

    Hi Tony Weiss,

    Concerning manual full system scan, you state above "Depending on your system resources, the CPU percentage will rise higher if you're simultaneously running a manual Full System Scan and other programs."

    What I am seeing is that even if the computer is idle Norton will take 99% cpu during full scan.

    If I start other applications, then Norton will give back some cpu so that the total is always 99%

    This means that even if my computer is idle when Norton does full scan, then I have 99-100% cpu for about 45 minutes. Maybe someone could tell us if that could be harmful to the cpu ?

    Kudos0

    Re: Norton Security causing high CPU Usage

    Davec33:  then I have 99-100% cpu for about 45 minutes. Maybe someone could tell us if that could be harmful to the cpu ?

    IMO .... it isn't % of usage that damages a CPU, its the temperature....
    running at 100% is okay with adequate ventilation,.... watch temps.
    Safe temps + Safe voltage = Safe.

    Kudos0

    Re: Norton Security causing high CPU Usage

    So, I went to my account to check my license status and it gave me an option to “upgrade” – really just going from 3 devices to 5.  So I did, and it told me to install my update.  I did the install (which removed and re-installed NIS 22.7.0.26).  After the removal, install, reboot, finish install – my CPU issue has gone away.  Has been stable for the last 4 hours.

    Seems a normal re-install over the existing version fixes the problem.

    Hope this helps.

    Kudos0

    Re: Norton Security causing high CPU Usage

    PeterSw: Seems a normal re-install over the existing version fixes the problem. Hope this helps.

    Thanks....let us know how Norton behaves. 

    Kudos0

    Re: Norton Security causing high CPU Usage

    Since i have upgraded my pc to Windows 10 Pro the NIS 2016 is causing
    high cpu usage, (100%) this stop as long i disable auto protect, i have update NIS to the latest but no luck. Please advice.

    BR
    Andreas

    Kudos0

    Re: Norton Security causing high CPU Usage

    My machine was running fine when I went to bed.  When I woke up, NIS was at 90%.  A scan was run "5 hours ago" according to the NIS splash page.

    I rebooted and the CPU dropped down to nominal amounts.

    Unfortunately for continued troubleshooting, I am traveling for the next 10 days.  I plan to power off my machine due to this problem and my concerns about NIS driving overheating.

    Kudos0

    Re: Norton Security causing high CPU Usage

    HEY TONY, GETTING THE PICTURE YET?  THIS IS A BROAD-BASED PROBLEM, NOT JUST A BUNCH OF NEWBIES COMPLAINING.

    I'M NOW PEGGED AT 75% AFTER A FRESH REBOOT AND NOT DOING ANYTHING.  WTF IS GOING ON AT YOUR COMPANY?

    I'M SCREAMING AT SYMANTEC BECAUSE I STILL DON'T SEE THE ACTIVITY THAT WOULD INDICATE THE CORPORATION SEES THIS AS A "HAIR ON FIRE" SITUATION.  TO THE CONTRARY, THE RESPONSE INDICATES THAT THEY SEE THIS AS NO BIG DEAL.

    DEAR: 

    Gayathri R
    Norton Forums Administrator
    Symantec Corporation

    PLEASE, NO PRIVATE MESSAGES.  THIS IS TOO BIG AN ISSUE.  AT THIS POINT I'M KINDA BUSY ATTEMPTING TO EARN MONEY WHILE FIGHTING A CPU PEGGED AT 75%.  I'D BE HAPPY TO COLLECT INFORMATION FOR YOU.  DO YOU AGREE TO PAY ME MY NORMAL CONSULTING RATE FOR THIS ASSISTANCE?  OTHERWISE, SOMETHING LIKE A 10-YEAR NO CHARGE LICENSE TO NORTON, ASSUMING THIS GETS FIXED, MIGHT BE ADEQUATE COMPENSATION.  BUT NO FREEBIE WORK.  I DON'T DO FREEBIE WORK.  REMEMBER, I PAID SYMANTEC MONEY FOR THE QUIET ENJOYMENT OF VIRUS PROTECTION--AND I HAVE TO PAY IT EVERY YEAR.

    NOW, TO YOUR QUESTION.  THE STEPS I TOOK THAT LED TO THE "SPIKE" (SEE STILL IN DENIAL SINCE MY "SPIKE" IS NOW GOING ON TWO DAYS) WAS TO, STUPIDLY, INSTALL YOUR UPGRADE AND REBOOT THE COMPUTER.  THAT'S IT.  NO JOKE.  THIS IS NOT MY PROBLEM. THIS IS NOT SOMETHING I DID.  STOP DELAYING AND GET THIS BLOODY PROBLEM FIXED NOW!!!!!

    PS:  NOW 80% AND ON IT'S WAY TO 85%.  

    Kudos0

    Re: Norton Security causing high CPU Usage

    NOW CONSISTENTLY 85%.  TIME TO REBOOT TO SEE IF I CAN GET IT BACK TO THE NEW NORMAL OF 50%.  BOY, THIS ALMOST LOOKS LIKE HOW SOME OF THOSE VIRUSES, MALWARE AND TROJAN HORSES BEHAVE--JUST TAKE MORE AND MORE COMPUTER RESOURCES OVER TIME.  MAYBE NORTON IS TRYING TO PROTECT MY COMPUTER FROM ITSELF AND SO IT KEEPS ESCALATING THE USE OF COMPUTER RESOURCES OVER TIME IN THAT ATTEMPT.

    Kudos0

    Re: Norton Security causing high CPU Usage

    I have reached my peak myself. I am done helping them troubleshoot. Its time consuming and to be blunt. I don't want to bother with it any more. They can fix it themselves and figure it out this time. They are a multi billion dollar corporation. For one I will not be renewing my subscription once its up. And 2. I will be moving onto another product that does not have a critical issue like this.

    I don't like or what I see how they are handling this problem through PM's with certain people like myself. They need to reach out to the community as a whole and actually communicate openly admitting they have a serious issue happening right now. Until then for me. Done and DONE!    

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