Author Topic: Avast CPU Consumption  (Read 1235 times)

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Offline abhijit3

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Avast CPU Consumption
« on: October 20, 2019, 03:09:31 PM »
Hey Guys!!
After the recent updates, my AVAST has gone completely haywire. It is constantly showing CPU consumption in the range of 60 - 80%. Occasionally this falls to 30% and then shoots back to abnormal levels. Did a reboot and an AVAST reinstall but no luck so far. Pls see the screen shot that I am attaching.
Any help would be appreciated.

Offline bob3160

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Re: Avast CPU Consumption
« Reply #1 on: October 20, 2019, 05:20:34 PM »
Try the following.
Repair & Clean Install of Avast -> https://goo.gl/t7aJGq
Free avast! Security Seminar: http://bit.ly/2N1eaR2  -  Important: http://www.organdonor.gov/ -- My Web Site: http://bob3160.strikingly.com/ - Win 11 Pro v21H2 64bit, 16 Gig Ram, 1TB SSD, Avast Free 22.5, How to Successfully Install Avast http://goo.gl/VLXdeRepair & Clean Install https://goo.gl/t7aJGq -- My Online Activity https://

Offline abhijit3

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Re: Avast CPU Consumption
« Reply #2 on: October 22, 2019, 02:05:07 PM »
Thanks Bob. Did everything you said. Things worked well for a couple of days. But Avast is back to consuming huge CPU resources once again. I am worried it has something to do with the new update which could possibly be broken.

Offline bob3160

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Re: Avast CPU Consumption
« Reply #3 on: October 22, 2019, 04:18:52 PM »
I'm using Avast Omni and can't duplicate your problem.
Maybe someone else can shed a light on other things for you to try.
Free avast! Security Seminar: http://bit.ly/2N1eaR2  -  Important: http://www.organdonor.gov/ -- My Web Site: http://bob3160.strikingly.com/ - Win 11 Pro v21H2 64bit, 16 Gig Ram, 1TB SSD, Avast Free 22.5, How to Successfully Install Avast http://goo.gl/VLXdeRepair & Clean Install https://goo.gl/t7aJGq -- My Online Activity https://

Offline Asyn

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Re: Avast CPU Consumption
« Reply #4 on: October 22, 2019, 04:26:52 PM »
- Which Avast..? (Free/Pro/IS/Premium)
- Which version..?
- OS..? (32/64 Bit..? - which SP/Build..?)
- Other security related software installed..?
- Which AV(s) did you use before Avast..?
W8.1 [x64] - Avast PremSec 22.6.7351.BC [UI.712] - Firefox ESR 91.10 [NS/uBO/PB] - Thunderbird 91.10
Avast-Tools: Secure Browser 102.1 - Cleanup 22.2 - SecureLine 5.18 - DriverUpdater 22.2 - CCleaner 6.01
Avast Wissenswertes (Downloads, Anleitungen & Infos): https://forum.avast.com/index.php?topic=60523.0

Offline abhijit3

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Re: Avast CPU Consumption
« Reply #5 on: October 22, 2019, 04:54:12 PM »
Hi Asyn
I am on Avast Premium Security (previously Avast Internet Security) 19.8.2393 (build 19.8.4793.541). My machine in a Win10 64 bit device and I have always been on Avast. Never had this problem before. I have my defender and windows firewall turned off. All my Avast shields are active.
Need some urgent help as Avast CPU usage is shooting up towards the 90% mark.
Thanks in advance.

Offline Asyn

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Re: Avast CPU Consumption
« Reply #6 on: October 22, 2019, 05:30:12 PM »
1. Download Avast Premium Security: https://files.avast.com/iavs9x/avast_premium_security_setup_offline.exe
2. Follow instructions: https://www.avast.com/uninstall-utility (Run this tool for all prior installed Avast versions..!!)
3. Reinstall Avast with the downloaded installer from point 1.
4. Reboot.
W8.1 [x64] - Avast PremSec 22.6.7351.BC [UI.712] - Firefox ESR 91.10 [NS/uBO/PB] - Thunderbird 91.10
Avast-Tools: Secure Browser 102.1 - Cleanup 22.2 - SecureLine 5.18 - DriverUpdater 22.2 - CCleaner 6.01
Avast Wissenswertes (Downloads, Anleitungen & Infos): https://forum.avast.com/index.php?topic=60523.0

Offline bob3160

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Re: Avast CPU Consumption
« Reply #7 on: October 22, 2019, 11:42:59 PM »
1. Download Avast Premium Security: https://files.avast.com/iavs9x/avast_premium_security_setup_offline.exe
2. Follow instructions: https://www.avast.com/uninstall-utility (Run this tool for all prior installed Avast versions..!!)
3. Reinstall Avast with the downloaded installer from point 1.
4. Reboot.
The user has already done a clean install.
Free avast! Security Seminar: http://bit.ly/2N1eaR2  -  Important: http://www.organdonor.gov/ -- My Web Site: http://bob3160.strikingly.com/ - Win 11 Pro v21H2 64bit, 16 Gig Ram, 1TB SSD, Avast Free 22.5, How to Successfully Install Avast http://goo.gl/VLXdeRepair & Clean Install https://goo.gl/t7aJGq -- My Online Activity https://

Offline abhijit3

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Re: Avast CPU Consumption
« Reply #8 on: October 23, 2019, 03:34:55 AM »
Thanks Bob for pointing that out.

Offline abhijit3

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Re: Avast CPU Consumption
« Reply #9 on: October 23, 2019, 03:50:54 AM »
It is also interesting to note that the CPU consumption is remaining very high even when I am turning off all my shields. Ii is almost as if Avast is performing some heavy duty scanning all the time.

Offline abhijit3

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Re: Avast CPU Consumption
« Reply #10 on: October 23, 2019, 04:24:36 AM »
Left with no other option, went ahead and did another clean install. As you can see in the screenshot attached, everything looks fine at least as of now. Keeping my fingers crossed.

Offline Asyn

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Re: Avast CPU Consumption
« Reply #11 on: October 23, 2019, 05:34:20 AM »
OK, sounds good.
W8.1 [x64] - Avast PremSec 22.6.7351.BC [UI.712] - Firefox ESR 91.10 [NS/uBO/PB] - Thunderbird 91.10
Avast-Tools: Secure Browser 102.1 - Cleanup 22.2 - SecureLine 5.18 - DriverUpdater 22.2 - CCleaner 6.01
Avast Wissenswertes (Downloads, Anleitungen & Infos): https://forum.avast.com/index.php?topic=60523.0