AvastSvc intensively eats CPU on Win XP after sleep

Avast Free Antivirus / Premium Security
1

Hi All,
I’ve installed trial version of Avast IS on my old laptop with Win XP. And I’m seeing that system service named AvastSync has a strange behavior when my laptop is woken up from sleep mode. This service is permanently eats full core of CPU. Could anyone explain me what is it and what I can do for fix it?

Thanks in advance,
Oleg

2

Don’t use power saving settings.

3

Thanks a lot! But could you please explain me where it is in Avast settings?

Regards,
Oleg

4

I’m using Avast IS on my notebook with Windows XP and there is no AvastSync service.
May be you mean AvastSvc?

5

Yes, you are right. I’ve fixed topic name. Thanks for correction! I’ve attached the screenshot just in case.

6

Power saving settings are a windows thing, not a avast setting.

7

I have the power scheme “Always On” on my laptop in Power Options. What I’m doing wrong?

Thanks
Oleg

8

I checked my notebook with Windows XP.
When my notebook is restored after hybernate, AvastSvc.exe uses full CPU power (50%, one full thread).
After 10-20 seconds it stops.
I think it is normal.

CPU: Intel Atom N270
RAM: 2Gb

9

Could you please check the same for sleep mode, not for hibernate. I don’t use hibernate. I also have been testing it for a while and I’ve been waiting for 10-20 minutes without result.

Thanks,
Oleg

10

Same result for sleep mode.
Moreover, it eats CPU only if enough time passed while notebook was turned off (or sleep).
I repeated sleep-wake several times.

But I noticed that avastui.exe spends 1-2% of CPU always.

11

I guess it is incompatibility of some installed software on my laptop. I’ve found workaround until Avast Support is working out on my ticket. Everybody just have to disable and enable Avast. This also did not happen when network is down.

12

The problem is Windows power saving settings.
Disable them all.
When Windows goes to sleep/hibernate, it write the current state to the drive.
When waking up everything is loaded again into memory and avast scans it.

13

Please explain me how. I’m using Power Scheme = Always On and maximum performance now. This effect is observed only if laptop was in sleep long time, during one day, for example. Nothing happened if it wakes up after 10-20 min as it turned out.

Thanks,
Oleg