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Kudos0

Very long Full system scan

It takes too much time for Norton to complete Full system scan. I’ve configured this type of scanning for running every week on Sundays. And as I see each time this scan lasts longer and longer…

Here is my statistics:

Year of 2015: >1.2 million files, from 1h 16min to 1h 22min

Year of 2016, July (perhaps because of one of updates) >1 million files, 2h 08min!

Year of 2017, since the 9th of July world record: 3h 05min!!! After a week from that: 3h 20min, last week: 3h 26 min (1.4 million files).

The same PC. The same files. I don’t install any programs except Flash player or Java updates (but this happens rarely). So 99% of files are the same and are not new.

That does Norton try to scan on my PC??

P.S. I’ve tried Norton Insight scan, selected ‘all files’, waited for the reputations to update. It shows that Norton has to scan about 13% of files. So this doesn’t help :(

Labels: Virus Scan

Replies

Kudos0

Re: Very long Full system scan

The last Sunday's results: 1 436 598 files, 3h 34 min - the new WR

What is going on??

Kudos1 Stats

Re: Very long Full system scan

Your hardware and your running processes :) Nice to see you tracking world record, but you are not going to top off the guy who took 40 hours to do a full scan with heavily fragmented HDD and a weak dual core CPU. The longer you have the same operating system running, infrequent restarts, no cleanups, cached files, more heuristics and even more thorough check of all the files, the addition of new features, technology changes and so on can lead to prolonged scanning times. Have you considered cleaning up useless files? Reinstalling Norton with Norton Remove and Reinstall tool? Has your HDD been defragmented ever? What are your PC specs?

Kudos0

Re: Very long Full system scan

HDD is defragmented automatically by operating system itself and by Norton ('optimization').

I'm using Windows7 SP1 on laptop HP dv7 Core2Duo T6600 @ 2.2 GHz with 3 Gb of RAM. Two years ago it was enough for reasonable scanning times.

So the reason is NIS I think. They introduce new features but don't optimize the code. It gets heavier and heavier...

Kudos0

Re: Very long Full system scan

Your specs are barely acceptable for casual use, let alone with an Anti-virus system. Windows 7 and a couple of applications will easily use up all the ram and more than half of the CPU, leaving little resources for Norton to work with. Doing a manually, full, thorough scan is quite demanding if you want speeds. And your specs, even if it might seem 2 years ago, were already outdated back then. Technology is evolving at a ridiculous rate. Now, this does sound blunt and straightforward, but I wouldn't expect anything else. You could try doing a fresh install of your Windows copy after making backups, that would increase the speed slightly, but honestly, not surprised with your current results.

Kudos0

Re: Very long Full system scan

The lack of ram is the bigger of your problems for everyday performance. Ideally your CPU would have 3 times as much multi-core performance as your current CPU an 60% more single threaded performance, still you should be able to scrape by on what you have (better this hardware than being forced into a windows 10 computer)

Still, what % full is your hard drive (or at least the partition windows is installed on), and what size is the drive? (autodefrag doesn't work if there is no room)

I note about 250,000 files to scan here on this PC, you have ~1,400,000. Do you have lots of software installed, or just hundreds thousands of user files (documents, pictures, videos, etc..)?

There is at least one other test I can help you run with regards to slow hard drive performance, let me know if you want to give that a check.

Kudos0

Re: Very long Full system scan

My HDD is partitioned into 'C' drive (28.3Gb of 113 is free), recovery 'D' drive (12 Gb) and 'F' drive (19.5Gb of 107 is free).

According to system logs the defragmentation software works fine. There are no errors or like that.

I don't have lots of software but you are right I have many user files (I'm a translator and those are my old projects). There are also installation kits, document scans, photos etc. But many of these files are old and do not change for years!! Why Norton scan them every time??

Kudos0

Re: Very long Full system scan

Only that much occupied and 1.4mln files (Ah, translation files)? I think there is a setting, where you can scan files ones and not touch them again if no changes haven't been made. Additionally, you can exclude the folders where you know the files haven't and won't change for a long time, effectively skipping the scan.

Kudos0

Re: Very long Full system scan

Ronny7:

My HDD is partitioned into 'C' drive (28.3Gb of 113 is free), recovery 'D' drive (12 Gb) and 'F' drive (19.5Gb of 107 is free).

According to system logs the defragmentation software works fine. There are no errors or like that.

I don't have lots of software but you are right I have many user files (I'm a translator and those are my old projects). There are also installation kits, document scans, photos etc. But many of these files are old and do not change for years!! Why Norton scan them every time??

How does Norton know the files have not changed? File timestamps can be tampered easily. Also the previous scan was only checking for what it could detect at the time, newly added detections can only be detected with a new scan.

Your partitions are actually quite full, this alone could have an impact on your performance (although not enough to make a devastating impact). Also lots of small files are slower to scan than the same GB of large files. Defrag may only be partially effective with a ~75% full drive.

There is at least one other test I can help you run with regards to slow hard drive performance, let me know if you want to give that a check.

Kudos0

Re: Very long Full system scan

Ignore my previous message. I somehow read this as being 20gb/107 occupied. Yeah, the fact that HDD's are relatively full is also a factor of a long scan. In addition to what password_password said, Norton keeps adding new ways and new methods of file check as well as learning more about files and how they work. Something that didn't appear malicious one day can be undetected malware. Also, if your files are old and haven't changed in years, so did the OS? A very long uptime on the OS can eventually lead to such problems as well.

Kudos0

Re: Very long Full system scan

Thank you guys! I guess I catch your drift

There is at least one other test I can help you run with regards to slow hard drive performance, let me know if you want to give that a check.

Yep I'm interested in that. Let's perform some tests. 

Kudos0

Re: Very long Full system scan

I think there is a setting, where you can scan files ones and not touch them again if no changes haven't been made.

The only way to do that is to exclude files or folders.

By default, Norton will scan all files again when new malware definitions are downloaded so the files are checked against any newly detected malware definitions. 

If you are worried about the scan times, why not cut back on the number of scans you do? By default, Norton will do a full system scan once a month. Unless you are constantly downloading files, not much is changing on your system. So why scan the same things over and over. Your protection is not lessened because anything that might be found by new malware definitions would still be caught if you tried to access an older file.

Things happen. Export/Backup your Norton Password Manager data.
Kudos0

Re: Very long Full system scan

Peterweb, I think I mentioned that solution just a couple of posts above to exclude everything that he knows is relevant and won't be changing.

And to second Peterweb's opinion on the scans, I agree as well. You have an active anti-virus running, a majority if not all of the new threats will be found and if you are that worried, scan manually every couple of weeks, and you are good to go.

Kudos0

Re: Very long Full system scan

Ronny7:

Thank you guys! I guess I catch your drift

There is at least one other test I can help you run with regards to slow hard drive performance, let me know if you want to give that a check.

Yep I'm interested in that. Let's perform some tests. 

Download and install GSmartControl:

http://sourceforge.net/projects/gsmartcontrol/files/1.0.2/gsmartcontrol-1.0.2-win32.exe/download

Homepage:
https://gsmartcontrol.sourceforge.io/home/index.php
https://gsmartcontrol.sourceforge.io/home/index.php/Downloads

Use caution on the download page as you may see ads (this is good advice when downloading anything).

Once you have successfully downloaded and installed the program, open the (now installed) program, then in GSmartControl open the item that represents your hard drive (or drives). "Save As" the log and attach it (you should have one log for each drive). Edit out HD serial numbers if you want.

There is a way to get more detailed logs, but this should be enough for now.

If you have any errors stop and report them and we can figure out what to do next. (only hard drives and SSDs will have SMART details)

Kudos1 Stats

Re: Very long Full system scan

I would strongly suggest avoiding third party providers and download straight from the developer's websites. Pretty much with anything that you do. Often 3rd party providers will try to add their bloatware alongside legitimate downloads. Just a heads up for the future.

Kudos0

Re: Very long Full system scan

Josh Ross:

I would strongly suggest avoiding third party providers and download straight from the developer's websites. Pretty much with anything that you do. Often 3rd party providers will try to add their bloatware alongside legitimate downloads. Just a heads up for the future.

I'm not sure if you are referring to my link or just generically. If you are saying, in general, be "careful and use caution when downloading", I agree. If you are referring to GSmartControl and it's official download link above, please provide evidence of any tampered download and I will dig deeper.

As for the ads (anywhere on the internet), users will need to recognize ads, treat them all as unsafe, and ignore them (no mater how enticing and well targeted they are).

Kudos0

Re: Very long Full system scan

In general, not your link. I am pretty certain that Sourceforge is not malicious in any way. It is just a reminder for people to be careful. I know that you, password_password, know your stuff and won't be posting malicious links.

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