Norton Antivirus 9 auto scan CPU usage

[Slickone]

On my NT machine at work, rtvscan.exe will out of the blue start scanning, bringing my system to a crawl. It's at no certain time, and often at the worst times. Task Mgr shows CPU usage jumping all over the place, up to 99%. With no Admin rights, I can't change any settings myself. I asked the tech support guy here why he can't turn off/remove and auto scheduling, ro change it to after hours, but he says that the rtvscan.exe is a separate part, and even if there are no scans scheduled, rtvscan will still do it's thing, and there's no way to prevent it from doing so. True?

 

[Smilin]

rtvscan runs all the time (realtime scanner). I think the same process is used when a scheduled scan is run. This could be what you are seeing.

The anti-virus admin should be able to determine when scheduled scans run, give the option to cancel them etc.

Dont' ask to have rtvscan shut off/removed though. Admin won't do it.

 

[phantom404]

Also there is a program it runs called DoScan.exe. I know Symantic has a registry fix on their website to keep it from activating. DoScan was what was killing my box until I downloaded the reg fix and all is well

 

[Slickone]

Originally posted by: Smilin
rtvscan runs all the time (realtime scanner). I think the same process is used when a scheduled scan is run. This could be what you are seeing.

The anti-virus admin should be able to determine when scheduled scans run, give the option to cancel them etc.

Dont' ask to have rtvscan shut off/removed though. Admin won't do it.

I wasn't planning to get rtvscan removed, and I know it's resident all the time, and that it's a scanner, but as mentioned when it decides to scan, it's (rtvscan) is bogging the system down. And again, the tech guy says in his research, removing schedule scans (if there even are any) won't stop rtvscan.
Another thing is sometimes even when it's done scanning, the CPU usage for rtvscan will stay at 99% and the system crawls until I reboot. Not very often though.
He says these are known problems with no fix, I thnk without upgrading to a new version that doesn't work with NT. Have to stay with NT for now.

 

[Slickone]

^

 

[Genx87]

In v. 10 there is an option for making the real time scanner a low priority thread so it doesnt interfere that much with your performance.

It usually kicks off at 100% and will quickly scale down to whatever you need and hovers around 30%. I dont know about 9 as we did a v 8-->10 upgrade.

May want to check it out.

 

[Slickone]

^