Author Topic: BSOD related to aswstm.sys after Windows update  (Read 2599 times)

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Offline Oh my

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BSOD related to aswstm.sys after Windows update
« on: August 20, 2018, 10:04:13 AM »
A couple of days ago Windows updated to a new version. The update went without a hitch, and the system booted as usual. At some point a notification was shown about an unnamed "driver update", which too was successful. However, since then the system refuses to boot, showing a BSOD with an Page fault in nonpaged area error at aswstm.sys (Avast's "stream filter" driver).

I'm able to access recovery mode, and Kyhi's recovery tools and a live Linux distro are available as well. chkdsk /r found no errors. sfc /scanfile="aswstm.sys" raises an error: Windows Resource Protection could not perform the requested operation, with a log file stating Servicing stack shim unable to mark handle [some id]. I've not seen a memory dump at either C:\Windows or C:\Windows\Minidump.

Advice?

Offline Asyn

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Re: BSOD related to aswstm.sys after Windows update
« Reply #1 on: August 20, 2018, 10:05:29 AM »
- Which Avast..? (Free/Pro/IS/Premier)
- 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 Free AV 23.3.8047.BC [UI.757] - Firefox ESR 102.9 [NS/uBO/PB] - Thunderbird 102.9.1
Avast-Tools: Secure Browser 109.0 - Cleanup 23.1 - SecureLine 5.18 - DriverUpdater 23.1 - CCleaner 6.01
Avast Wissenswertes (Downloads, Anleitungen & Infos): https://forum.avast.com/index.php?topic=60523.0

Offline Oh my

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Re: BSOD related to aswstm.sys after Windows update
« Reply #2 on: August 20, 2018, 10:24:30 AM »
- Avast Free 2018, some recent build (updated 2-3 weeks ago)
- Comodo Free Firewall
- Windows 10 Pro 64bit
- No other AVs since system installation

Offline Asyn

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Re: BSOD related to aswstm.sys after Windows update
« Reply #3 on: August 20, 2018, 10:27:49 AM »
First, be sure to get rid of all remnants of Comodo..!!
-> https://support.avast.com/article/11/

Then:
1. Download Avast Free Antivirus: https://files.avast.com/iavs9x/avast_free_antivirus_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 Free AV 23.3.8047.BC [UI.757] - Firefox ESR 102.9 [NS/uBO/PB] - Thunderbird 102.9.1
Avast-Tools: Secure Browser 109.0 - Cleanup 23.1 - SecureLine 5.18 - DriverUpdater 23.1 - CCleaner 6.01
Avast Wissenswertes (Downloads, Anleitungen & Infos): https://forum.avast.com/index.php?topic=60523.0

Offline Oh my

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Re: BSOD related to aswstm.sys after Windows update
« Reply #4 on: August 20, 2018, 10:43:01 AM »
The system doesn't boot. I can't do any of these. Running avastclear.exe through Kyhi's does nothing.

Offline Asyn

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Re: BSOD related to aswstm.sys after Windows update
« Reply #5 on: August 20, 2018, 10:50:16 AM »
Can't you boot into safe mode..?
W8.1 [x64] - Avast Free AV 23.3.8047.BC [UI.757] - Firefox ESR 102.9 [NS/uBO/PB] - Thunderbird 102.9.1
Avast-Tools: Secure Browser 109.0 - Cleanup 23.1 - SecureLine 5.18 - DriverUpdater 23.1 - CCleaner 6.01
Avast Wissenswertes (Downloads, Anleitungen & Infos): https://forum.avast.com/index.php?topic=60523.0

Offline Oh my

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Re: BSOD related to aswstm.sys after Windows update
« Reply #6 on: August 20, 2018, 11:23:44 AM »
You've enlightened me on this silliest of subjects. For some reason I was under the impression they took away "safe mode" when they took away F8 several years ago.

I've logged in to "safe mode" and ran an installation repair, and now everything is back to normal.

Thanks!

Offline Asyn

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Re: BSOD related to aswstm.sys after Windows update
« Reply #7 on: August 20, 2018, 11:27:32 AM »
You're welcome.
W8.1 [x64] - Avast Free AV 23.3.8047.BC [UI.757] - Firefox ESR 102.9 [NS/uBO/PB] - Thunderbird 102.9.1
Avast-Tools: Secure Browser 109.0 - Cleanup 23.1 - SecureLine 5.18 - DriverUpdater 23.1 - CCleaner 6.01
Avast Wissenswertes (Downloads, Anleitungen & Infos): https://forum.avast.com/index.php?topic=60523.0