Author Topic: [SOLVED] Avastsvc.exe hogging CPU (10-15%)  (Read 5137 times)

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[SOLVED] Avastsvc.exe hogging CPU (10-15%)
« on: September 05, 2016, 03:26:31 AM »
Ever since I updated to the newest version 12.3.2280 (build 12.3.3154.0), Avastsvc.exe has been running at 10-15% CPU non-stop.
This is happening on two similar computers in the exact same way.
I tried uninstalling and reinstalling Avast, but it did not help.
If I turn off the File Shield, it drops to 0%.
I left the computers running for hours doing nothing, but it's still 10-15% CPU.
Process Monitor seems to have it creating and deleting sig*.tmp files in the Windows temp folder again and again.
Anyone know what this might be?

Windows 10 64-bit for both computers
« Last Edit: September 07, 2016, 02:48:35 AM by the_professor »

Offline bob3160

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Re: Avastsvc.exe hogging CPU (10-15%)
« Reply #1 on: September 05, 2016, 11:01:57 PM »
Does disabling or removing Avast Cleanup help ???
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Offline DavidR

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Re: Avastsvc.exe hogging CPU (10-15%)
« Reply #2 on: September 05, 2016, 11:21:16 PM »
Do you happen to have a program called Pray installed ?

- in another topic with this kind of CPU activity, it was found to be Prays activity that was causing avasts scanning activity.
Windows 10 Home 64bit/ Acer Aspire F15/ Intel Core i5 7200U 2.5GHz, 8GB DDR4 memory, 256GB SSD, 1TB HDD/ avast! free 24.1.6099 (build 24.1.8821.762) UI 1.0.796/ Firefox, uBlock Origin, uMatrix/ MailWasher Pro/ Avast! Mobile Security

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Re: Avastsvc.exe hogging CPU (10-15%)
« Reply #3 on: September 05, 2016, 11:47:16 PM »
The service is Prey. It keeps track of your devices if they should get lost. :)
Free Security Seminar: https://bit.ly/bobg2023  -  Important: http://www.organdonor.gov/ -- My Web Site: http://bob3160.strikingly.com/ - Win 11 Pro v22H2 64bit, 16 Gig Ram, 1TB SSD, Avast Free 23.5.6066, How to Successfully Install Avast http://goo.gl/VLXdeRepair & Clean Install https://goo.gl/t7aJGq -- My Online Activity https://bit.ly/BobGInternet

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Re: Avastsvc.exe hogging CPU (10-15%)
« Reply #4 on: September 06, 2016, 12:08:40 AM »
The service is Prey. It keeps track of your devices if they should get lost. :)

Thanks for the clarification Bob.
Windows 10 Home 64bit/ Acer Aspire F15/ Intel Core i5 7200U 2.5GHz, 8GB DDR4 memory, 256GB SSD, 1TB HDD/ avast! free 24.1.6099 (build 24.1.8821.762) UI 1.0.796/ Firefox, uBlock Origin, uMatrix/ MailWasher Pro/ Avast! Mobile Security

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Re: Avastsvc.exe hogging CPU (10-15%)
« Reply #5 on: September 07, 2016, 02:47:14 AM »
Do you happen to have a program called Pray installed ?

- in another topic with this kind of CPU activity, it was found to be Prays activity that was causing avasts scanning activity.
Wow! Thank you so much!
Yes, I did have Prey installed, and now that I uninstalled it, CPU is back to 0%.

Can't thank you enough!! :D

Offline DavidR

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Re: [SOLVED] Avastsvc.exe hogging CPU (10-15%)
« Reply #6 on: September 07, 2016, 03:06:57 PM »
You're welcome, hopefully avast will look into this and see where the conflict lies.
Windows 10 Home 64bit/ Acer Aspire F15/ Intel Core i5 7200U 2.5GHz, 8GB DDR4 memory, 256GB SSD, 1TB HDD/ avast! free 24.1.6099 (build 24.1.8821.762) UI 1.0.796/ Firefox, uBlock Origin, uMatrix/ MailWasher Pro/ Avast! Mobile Security

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Re: Avastsvc.exe hogging CPU (10-15%)
« Reply #7 on: September 07, 2016, 03:20:49 PM »
Do you happen to have a program called Pray installed ?

- in another topic with this kind of CPU activity, it was found to be Prays activity that was causing avasts scanning activity.
Wow! Thank you so much!
Yes, I did have Prey installed, and now that I uninstalled it, CPU is back to 0%.

Can't thank you enough!! :D
The problem with that is that if you loose your device, Prey can't find it for you.
This needs to be solved by Avast or Prey or both.
Without Prey, I would not have recovered one of my laptops from the Miami Airport. :)


For me, Prey had stopped working after the last Avast update. I needed to uninstall Prey and subsequently
re-install their latest version. More help here: http://help.preyproject.com/
Free Security Seminar: https://bit.ly/bobg2023  -  Important: http://www.organdonor.gov/ -- My Web Site: http://bob3160.strikingly.com/ - Win 11 Pro v22H2 64bit, 16 Gig Ram, 1TB SSD, Avast Free 23.5.6066, How to Successfully Install Avast http://goo.gl/VLXdeRepair & Clean Install https://goo.gl/t7aJGq -- My Online Activity https://bit.ly/BobGInternet

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Re: [SOLVED] Avastsvc.exe hogging CPU (10-15%)
« Reply #8 on: September 07, 2016, 04:43:43 PM »
The problem with that is that if you loose your device, Prey can't find it for you.
This needs to be solved by Avast or Prey or both.
Without Prey, I would not have recovered one of my laptops from the Miami Airport. :)


For me, Prey had stopped working after the last Avast update. I needed to uninstall Prey and subsequently
re-install their latest version. More help here: http://help.preyproject.com/
Agreed.
Although, for all the hours I spent searching forums, I cannot get my Guest account to work in Windows 10. It crashes on login.
Without the Guest account, the "finder" of the laptop cannot use it, which means Prey won't work.
On the other hand, Windows 10 has its own "Find My Device" feature (Settings -> Update & security -> Find My Device), albeit without the ability to remote wipe and snap pictures.
Of course this also depends on the finder turning it on, and the laptop connecting to wifi.
But I digress.

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Re: [SOLVED] Avastsvc.exe hogging CPU (10-15%)
« Reply #9 on: September 07, 2016, 10:03:59 PM »
I just received the following:
Attention, users:

We detected that you currently have Prey version 1.6.2 or version 1.6.1 installed in one of your Windows devices, so we urge you to update immediately to Prey's new version 1.6.3 - the first one was released with a compatibility issue that in some specific cases makes Prey ineffective on the devices it was installed. This means that if you currently have version 1.6.2 or 1.6.1, your devices could not be protected, meaning they can't be traced nor you will be able to use any of the features provided by Prey.

Update to Prey version 1.6.3[/font]

Prey's new version 1.6.3 is working completely fine and it should be business as usual in your devices.
We're truly sorry for the inconveniences this may cause. Feel free to reach out to us via Facebook or Twitter to solve any issues regarding this or other problems with Prey's performance.
The Prey Team
I've installed that version and Prey is again working properly.
Free Security Seminar: https://bit.ly/bobg2023  -  Important: http://www.organdonor.gov/ -- My Web Site: http://bob3160.strikingly.com/ - Win 11 Pro v22H2 64bit, 16 Gig Ram, 1TB SSD, Avast Free 23.5.6066, How to Successfully Install Avast http://goo.gl/VLXdeRepair & Clean Install https://goo.gl/t7aJGq -- My Online Activity https://bit.ly/BobGInternet

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Re: [SOLVED] Avastsvc.exe hogging CPU (10-15%)
« Reply #10 on: September 07, 2016, 11:04:48 PM »
I just received the following:
Attention, users:

We detected that you currently have Prey version 1.6.2 or version 1.6.1 installed in one of your Windows devices, so we urge you to update immediately to Prey's new version 1.6.3 - the first one was released with a compatibility issue that in some specific cases makes Prey ineffective on the devices it was installed. This means that if you currently have version 1.6.2 or 1.6.1, your devices could not be protected, meaning they can't be traced nor you will be able to use any of the features provided by Prey.

Update to Prey version 1.6.3[/font]

Prey's new version 1.6.3 is working completely fine and it should be business as usual in your devices.
We're truly sorry for the inconveniences this may cause. Feel free to reach out to us via Facebook or Twitter to solve any issues regarding this or other problems with Prey's performance.
The Prey Team
I've installed that version and Prey is again working properly.
Working for me too.
Thank you!!

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Re: [SOLVED] Avastsvc.exe hogging CPU (10-15%)
« Reply #11 on: September 07, 2016, 11:39:18 PM »
My pleasure. I didn't really want to be without this reliable additional security which has already proven invaluable to me. :)
Free Security Seminar: https://bit.ly/bobg2023  -  Important: http://www.organdonor.gov/ -- My Web Site: http://bob3160.strikingly.com/ - Win 11 Pro v22H2 64bit, 16 Gig Ram, 1TB SSD, Avast Free 23.5.6066, How to Successfully Install Avast http://goo.gl/VLXdeRepair & Clean Install https://goo.gl/t7aJGq -- My Online Activity https://bit.ly/BobGInternet