Author Topic: AvastUI.exe * 32 always uses 25% of cpu's resources.  (Read 6488 times)

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Offline fafner

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AvastUI.exe * 32 always uses 25% of cpu's resources.
« on: April 06, 2018, 03:31:44 PM »
It has occurred since April 6.
AvastUI.exe * 32 always uses 25% of cpu's resources.
I am not running the scan.
It will not fix after reinstalling.
There are no other installed software.
Is there a solution?

This sentence is translated from Japanese to machine.
I am sorry if it is difficult to read.

Offline pk

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Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
« Reply #1 on: April 06, 2018, 03:50:17 PM »
Hi,
when you see 25% of cpu resource for avastui.exe process, can you please run Task Manager (taskmgr.exe), right click on this process and select "Create dump file"? Please compress this file (e.g. zip/rar or 7zip) and upload it on our ftp (https://support.avast.com/en-ww/article/FTP-file-upload). Thanks!

Offline XanderK

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Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
« Reply #2 on: April 11, 2018, 07:16:22 PM »
I'm experiencing the same behaviour after updating to program version 18.3.2333. Avast is using up to 30+% CPU time while I have not "instructed" Avast to perform any actions.
I have already tried to repair my installation but that didn't help.
I'm running Windows 10 Pro including Avast Premier including an active subscription.
Any ideas?

Offline DavidR

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Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
« Reply #3 on: April 11, 2018, 07:53:23 PM »
I'm experiencing the same behaviour after updating to program version 18.3.2333. Avast is using up to 30+% CPU time while I have not "instructed" Avast to perform any actions.
I have already tried to repair my installation but that didn't help.
I'm running Windows 10 Pro including Avast Premier including an active subscription.
Any ideas?

Yes, follow pk's (an Avast Team Member) request for information when the CPU % is high.
WinXP ProSP3/ Core2Duo E8300/ 4GB Ram/ avast! free 18.5.2342/ Firefox ESR, uBlock Origin, uMatrix/ MailWasher Pro7.11.0/ DropMyRights/ WinPatrol+/ Drive Image 7.1/ SnagIt 10.0/ avast! mobile security
Windows 10 Home 64bit/ Acer Aspire F15/ Intel Core i5 7200U 2.5GHz, 8GB DDR4 memory, 256GB SSD, 1TB HDD/ avast! free 19.8.2393 (build 19.8.4793.541) UI-1.0.415/ WinPatrol+/ Firefox, uBlock Origin, uMatrix/ MailWasher Pro7.11.0/ WinPatrol+/

Offline XanderK

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Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
« Reply #4 on: April 11, 2018, 09:23:50 PM »
Information has been submitted to the Avast FTP server.

Filename: xander.kort@x-on.nl.zip
Password: virus

Please keep me updated towards a resolution.

Offline DavidR

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Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
« Reply #5 on: April 11, 2018, 10:28:20 PM »
Information has been submitted to the Avast FTP server.

Filename: xander.kort@x-on.nl.zip
Password: virus

Please keep me updated towards a resolution.


Thanks, hopefully pk can pick up on this for the Avast Team.
WinXP ProSP3/ Core2Duo E8300/ 4GB Ram/ avast! free 18.5.2342/ Firefox ESR, uBlock Origin, uMatrix/ MailWasher Pro7.11.0/ DropMyRights/ WinPatrol+/ Drive Image 7.1/ SnagIt 10.0/ avast! mobile security
Windows 10 Home 64bit/ Acer Aspire F15/ Intel Core i5 7200U 2.5GHz, 8GB DDR4 memory, 256GB SSD, 1TB HDD/ avast! free 19.8.2393 (build 19.8.4793.541) UI-1.0.415/ WinPatrol+/ Firefox, uBlock Origin, uMatrix/ MailWasher Pro7.11.0/ WinPatrol+/

Offline XanderK

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Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
« Reply #6 on: April 13, 2018, 11:29:27 AM »
Any news on this topic?
It is rather annoying as the fan inside my Surface Pro 3 is running at higher speed and thus making noise as a result of the increased 30+% CPU resources.

Offline kwiq

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Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
« Reply #7 on: April 13, 2018, 02:50:19 PM »
Hello,
the CPU is consumed by  thread :
00 0f9cfc38 73e8cce6 54f4257d a19e0fe1 6632c59c ntdll_76f90000!NtYieldExecution+0xc
*** ERROR: Symbol file could not be found.  Defaulted to export symbols for AcroRdIF.dll -
01 0f9cfc3c 54f4257d a19e0fe1 6632c59c 6632c59c KERNELBASE!SwitchToThread+0x6
WARNING: Stack unwind information not available. Following frames may be wrong.
02 0f9cfc68 6632c556 00000000 cd06c41a 6632c59c AcroRdIF!DllCanUnloadNow+0xefb
03 0f9cfca0 6632c600 6632c59c 0f9cfcc0 74038654 msvcr100!_callthreadstartex+0x1b
04 0f9cfcac 74038654 0f9d6858 74038630 e63bfc17 msvcr100!_threadstartex+0x64
05 0f9cfcc0 76ff4b17 0f9d6858 a07f8235 00000000 kernel32!BaseThreadInitThunk+0x24
06 0f9cfd08 76ff4ae7 ffffffff 77019f61 00000000 ntdll_76f90000!__RtlUserThreadStart+0x2f
07 0f9cfd18 00000000 6632c59c 0f9d6858 00000000 ntdll_76f90000!_RtlUserThreadStart+0x1b

C:\Program Files (x86)\Adobe\Reader 11.0\Reader\AcroRdIF.dll

    Loaded symbol image file: AcroRdIF.dll
    Image path: C:\Program Files (x86)\Adobe\Reader 11.0\Reader\AcroRdIF.dll
    Image name: AcroRdIF.dll
    Browse all global symbols  functions  data
    Timestamp:        Mon Sep 24 04:47:21 2012 (505FC9B9)
    CheckSum:         0001B3AF
    ImageSize:        0001A000
    File version:     11.0.0.379
    Product version:  11.0.0.379
    File flags:       0 (Mask 3F)
    File OS:          40004 NT Win32
    File type:        2.0 Dll
    File date:        00000000.00000000
    Translations:     0409.04b0
    CompanyName:      Adobe Systems, Inc.
    ProductName:      Adobe PDF IFilter
    InternalName:     PDFFilter
    OriginalFilename: AcroRdIF.dll
    ProductVersion:   11.0.0.379
    FileVersion:      11.0.0.379
    FileDescription:  PDF IFilter
    LegalCopyright:   Copyright 1984-2012 Adobe Systems Incorporated and its licensors. All rights reserved.

Please try to update adobe reader to resolve the issue.
Thank you.



Offline NON

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Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
« Reply #8 on: April 13, 2018, 03:55:50 PM »
A Japanese user also reported this issue. I suggested to update Adobe Reader and will report back.


Edit: 4/13 23:27
In his/her case Adobe Reader seems not related. Uninstalling Adobe Reader does not solve his/her issue.


Edit2: 4/14 1:03
A Japanese user having the same issue uploaded dump files to the ftp.
  filename: AvastUI_ume3.zip
  pass: 218218
« Last Edit: April 13, 2018, 06:04:38 PM by NON »
Main: Win10 Pro 1903 64bit / Core i5-7400 3.0GHz / 8GB RAM / Avast 19 Premier Beta / Comodo Firewall 12
Mobile: Win10 Pro 1903 32bit, Vista SP2 32bit / Core 2 Duo SU9300 1.2GHz / 4GB RAM / Avast 19 Free / Windows Firewall Control
Phone: Android 2.3.4, 4.2.2 / Avast Mobile Security / Avast Anti-Theft

Avast の設定について解説しています。よろしければご覧ください。

Offline XanderK

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Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
« Reply #9 on: April 13, 2018, 08:46:38 PM »
Repairing Adobe Reader XI didn't have any affect.
Removing Adobe Reader XI presents an error in regards to files being in use by Avat Antivirus, see attachment.
As I can't turn Avast off at this point would I like to know how to continue.




Offline XanderK

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Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
« Reply #10 on: April 13, 2018, 09:15:40 PM »
Changed Avast to passive mode, rebooted, removed Adobe Reader XI, changed Avast to active mode and rebooted.

Now Avast Antivirus reports to use hardly any CPU resources. However, the CPU usage remains quite high and now Windows installer reports a CPU resource usage of 30%.

This behaviour started after updating Avast to program version 18.3.2333.

Any idea what is causing this strange behaviour?

Offline kwiq

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Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
« Reply #11 on: April 20, 2018, 02:25:49 PM »
Hi Non
in your case it seems that there is Datascan thread which consumes CPU. I would try to disable datascan for a while - it might help
Thank you   

Offline NON

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Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
« Reply #12 on: April 20, 2018, 02:56:14 PM »
Hi Non
in your case it seems that there is Datascan thread which consumes CPU. I would try to disable datascan for a while - it might help
Thank you
Thanks, I forwarded this to the OP.
Main: Win10 Pro 1903 64bit / Core i5-7400 3.0GHz / 8GB RAM / Avast 19 Premier Beta / Comodo Firewall 12
Mobile: Win10 Pro 1903 32bit, Vista SP2 32bit / Core 2 Duo SU9300 1.2GHz / 4GB RAM / Avast 19 Free / Windows Firewall Control
Phone: Android 2.3.4, 4.2.2 / Avast Mobile Security / Avast Anti-Theft

Avast の設定について解説しています。よろしければご覧ください。

Offline NON

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Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
« Reply #13 on: April 21, 2018, 07:13:50 PM »
Hi Non
in your case it seems that there is Datascan thread which consumes CPU. I would try to disable datascan for a while - it might help
Thank you
Hi kwiq, the OP claims there is no way to stop "Datascan" (I believe this refers to "Sensitive Data Scan") because he/she users Free version of Avast, thus no way to stop/uninstall this component.
Main: Win10 Pro 1903 64bit / Core i5-7400 3.0GHz / 8GB RAM / Avast 19 Premier Beta / Comodo Firewall 12
Mobile: Win10 Pro 1903 32bit, Vista SP2 32bit / Core 2 Duo SU9300 1.2GHz / 4GB RAM / Avast 19 Free / Windows Firewall Control
Phone: Android 2.3.4, 4.2.2 / Avast Mobile Security / Avast Anti-Theft

Avast の設定について解説しています。よろしければご覧ください。

Offline lanshark4972

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Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
« Reply #14 on: May 02, 2018, 09:26:33 PM »
Avastui.exe grabs close to 100% of my cpu upon booting.

I'm using Avast Free 18.3.2333 on up-to-date XP SP3.

I have zipped AvastUI Minidump.dmp and AvastUI Full Dump.dmp into the folder Dumps of avastui.zip and sent it per PK's instructions to the Avast Team FTP server, incoming directory. The upload was apparently successful.

Thanks, folks...