My case seems to be different than Calls problem. Two out of the three scans do run after the virus definition update. The early morning one runs as well does the one at night. It is the one in between these 2 that doesn't run. The one at night is while I am at the computer and runs without a problem. The first one is when I am sleeping. I only have 1 mouse and this is a relatively new problem for me. This computer is a desktop. Windows 7 pro 64bit and I use IE 11. Computer is up to date and was received by me last Aug. after being custom made.. I have only noticed this the past couple of weeks. The idle time is down to 1 minute so it doesn't take long for the computer to get into the idle state. It also doesn't take long for the scan to run. It doesn't always happen either. Again today it didn't run and I wasn't even home when the virus definitions were installed and no scan happened. This happened so far 2 days in a row this week. Nothing is different that I know of. This computer is hardwired.
My case seems to be different than Calls problem. Two out of the three scans do run after the virus definition update. The early morning one runs as well does the one at night. It is the one in between these 2 that doesn't run. The one at night is while I am at the computer and runs without a problem. The first one is when I am sleeping. I only have 1 mouse and this is a relatively new problem for me. This computer is a desktop. Windows 7 pro 64bit and I use IE 11. Computer is up to date and was received by me last Aug. after being custom made.. I have only noticed this the past couple of weeks. The idle time is down to 1 minute so it doesn't take long for the computer to get into the idle state. It also doesn't take long for the scan to run. It doesn't always happen either. Again today it didn't run and I wasn't even home when the virus definitions were installed and no scan happened. This happened so far 2 days in a row this week. Nothing is different that I know of. This computer is hardwired.
Sorry if I am not understanding what you are saying. You are saying that 2 out of 3 scans do not run after virus def updates. You then mention early morning, night and one in between. That is where you are losing me - I never know when I am going to have a virus def update, nor how many each day. Perhaps it has something to do with the way I use my system - gets booted up around 7/8 AM and stays oon until about 6/7 PM (excpet for Wed when I do a custom full system scan @ 7 PM and turn the system off around 10 PM when I head to bed). Also the Idle Quick Scans are shownin my History as unning anywhere from 13 minutes to 2 1/2 hours after the LiveUpdate for the Virus defs are completed. My Idle Time is set to 10 minutes, and being a vratur of habit, I know that the one of 13 minutes after the LU was while I was eating supper, whereas the other two for the day I am looking at was much longer prior to the Quick Scan running as I was surfing.
I have checked the past three days and I have had a Quick Scan completed after each Virus def I have received (although as long as 2 1/2 hours after the LU).
Sorry, but I can't be of any help unless you can explain how you know for a fact that you willl receive 3 virus defs update each say (morning, midday and night)??
" how you know for a fact that you willl receive 3 virus defs update each say (morning, midday and night)??"
I believe that Flo means that since usually there are Virus defs every 8 hours or so, Flo's Norton product received 3 sets of virus defs each day.
Of course every 8 hours or so, does not mean that the 8 number is an absolute value, it there was a major threat outbreak it could be every 2 hours etc.
On Saturdays there is usually 2 sets of daily virus defs and Sundays usually 1.
The problem, I believe, is that Norton doesn't run an idle quick scan after each Auto LU as it is supposed to do.
This is what I understand from Flo's post plus a bit of info I've added myself.
As for of the root cause of the problem, could be many things included a malfunction of NIS or even a bug in the latest NIS version.
First of all, my computer is on 24/7. Usually I get 3 antivirus updates a day during the week, whether by Automatic Live Update or by manual Live Update. 2 out of the 3 will have an idle quick scan. Today, all 3 had an idle quick scan. The early morning one (when I'm sleeping) usually runs. For me, the Idle Quick Scan takes under a minute to run. I have the idle timer set to 1 minute. Having it set that way, it doesn't take long for the computer to go into an idle state. Today, the 2nd antivirus update came early around 10 AM EDT and the scan ran. The 3rd scan of the day comes in the evening at various times and the quick scan also runs like it should. Therefore 2 out of the 3 scans run as they should. If I have a problem, then it is with the 2nd scan of the day. This is during the week, when there are usually 3 antivirus updates during the day. They aren't necesarily every 8 hours. I guess I know they happen or don't happen cause I do look at logs when I know I shouldn't look at them.
I could wait for 4 hours and it still wouldn't happen, yet on some days it works fine like it did today. I hope that this explains it better. I'm using NIS 21.2.0.38
If I understand correctly you receive 3 Virus Defs per day, for the first and third Virus defs that are installed, you always get a Quick scan while for the second one the scan is not always performed.
If so, perhaps during the afternoon Windows performs its task as Windows Update, Defrag, ... that prevent NIS to run the Quick scan, this would make sense to avoid overloading the hardware due to the various tasks, as well NIS should have the ability to prevent this.
I may have been seeing a similar problem on my Laptop PC. I read the other thread and checked my Performance graph to verify the "idle" state present on my PC. That looks ok.
Desktop PC:
Windows 7 x64
N360 2012 V20.4.0.40
The post-live update Quick Scans seem to be working ok according to a brief look at the "Security History" checks.
I noticed that the Quick Scans don't run after every Live Update but I'm not sure if that's the case with everyone else's PC's here.
Laptop PC:
Windows 7 x64
N360 2013 V21.2.0.38
The Quick Scan didn't appear to be working on the Laptop. The last Quick Scan that was run was on 04/14 according to the "Security History" checks. It was run following a Live Update.
The Norton background tasks appeared to be working ok on the Laptop as I've been seeing the occasional popup tray messages during idle mode, notifying me that the background tasks have completed ok. I verified this by checking the "Check Norton Tasks" history option. All selected tasks are running ok except for the Quick Scan option.
I did a comparison in the N360 Admin/Settings options with the Desktop and Laptop PC's and didn't see anything different that may have been affecting the Quick Scan differences with the 2 PC's.
I checked my Windows Update history to see if there were any Windows security updates installed around 04/14 . There were none installed at that time.
Then, it appears that I found the remedy by chance. Once again, I forgot about the old "universal panacea" PC action... the "restart/reset" . After I did a routine periodic HDD clone process on my Laptop (shutdown/restart, etc), I kept my Laptop awake for a few hours instead of returning it to Sleep mode to check to see if the scans would run after an update and the Quick Scans are working now.
Here's my screen info from the last couple of days to compare to other member's PC's.
Flopot Just curious after your automatic quick scan runs after a update of virus defs, do you also see this message in your recent history: Firewall configuration updated Then shows number of firewall rules? I created another post on this if you could respond there
I sometimes see the firewall mentioned, but I don't pay attentioin to that. I'm more concerned about the running of the idle quick scans since the default now is to run the full system scans once a month. Although I run my full idle scans once a week, I would still like to see the idle quick scans running when they should be running. This morning I noticed that my middle of the night idle quck scan ran during my scheduled thru NIS full idle Weekly scan. Then no scan after the antivirus update that occurred some time between 9 and 10 AM, also at a time before I get to my computer in the morning.