Author Topic: After uninstalling Avast Microsoft Defender doesn't run  (Read 217 times)

0 Members and 1 Guest are viewing this topic.

Offline Pealo

  • Newbie
  • *
  • Posts: 2
After uninstalling Avast Microsoft Defender doesn't run
« on: June 23, 2022, 12:01:10 PM »
After uninstalling avast free antivirus, my notification pop up regarding activating the microsoft inbuild virus and threat protection.
Sadly the whole page is not available to me after the avast uninstall. First it states that my local IT Administrator limited service. Then no single feature of the virus and threat protection is usable. For example if click "real time protection" on it will snap back to off right away.
Further it states the virus and threat protection as "unknown".
I would like to use it as previous. I have tried various methodes of fixing with regedit, group policies etc but these didn't help so far.
Any help really appreciated!

Offline Asyn

  • Avast Überevangelist
  • Certainly Bot
  • *****
  • Posts: 76142
    • >>>  Avast Forum - Deutschsprachiger Bereich  <<<
Re: After uninstalling Avast Microsoft Defender doesn't run
« Reply #1 on: June 23, 2022, 12:07:32 PM »
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 Pealo

  • Newbie
  • *
  • Posts: 2
Re: After uninstalling Avast Microsoft Defender doesn't run
« Reply #2 on: June 23, 2022, 12:18:44 PM »
Followed Instructions; didn't help

Offline Asyn

  • Avast Überevangelist
  • Certainly Bot
  • *****
  • Posts: 76142
    • >>>  Avast Forum - Deutschsprachiger Bereich  <<<
Re: After uninstalling Avast Microsoft Defender doesn't run
« Reply #3 on: June 23, 2022, 12:34:24 PM »
Followed Instructions; didn't help
If so, best you contact MS support.
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 CraigB

  • Avast Überevangelist
  • Serious Graphoman
  • *****
  • Posts: 11157
  • No support PM's thanks
Re: After uninstalling Avast Microsoft Defender doesn't run
« Reply #4 on: June 23, 2022, 01:01:32 PM »
Sometimes a couple of reboots are required for Defender to sort itself out after AV changes are made.