Author Topic: Avast 17 : can't open user interface!  (Read 9572 times)

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Avast 17 : can't open user interface!
« on: February 09, 2017, 02:15:17 PM »
Hi,

Just updated Avast to v17. But now can't open user interface : it opens then close immediately! In addition in the windows 10 taskbar icons are added. In 2 hours, there are near 15 Avast icons added... Then when we put the mouse pointer on it, it disapear then only one remains.

Any problem with v17?... (I already have rebooted the computer)

Offline Asyn

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Re: Avast 17 : can't open user interface!
« Reply #1 on: February 09, 2017, 02:29:24 PM »
- Which Avast..? (Free/Pro/IS/Premier)
- OS..? (32/64 Bit..? - which SP/Build..?)
- Other security related software installed..?
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

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Re: Avast 17 : can't open user interface!
« Reply #2 on: February 09, 2017, 03:04:19 PM »
Yes, sorry:

- Windows 10 home. v1607 - 14393.693
- Avast 17.1.2286 (build 12.3.3154.23). Free edition
- Other security: Malwarebyte (but never had any problem before updating avast to v17)

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Re: Avast 17 : can't open user interface!
« Reply #3 on: February 09, 2017, 03:06:10 PM »
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

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Re: Avast 17 : can't open user interface!
« Reply #4 on: February 09, 2017, 03:16:41 PM »
Ok, thanks. There is no safe mode with Windows 10. I launch it in normal mode?

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Re: Avast 17 : can't open user interface!
« Reply #5 on: February 09, 2017, 03:18:44 PM »
Ok, thanks. There is no safe mode with Windows 10. I launch it in normal mode?
Launch the uninstaller, he'll offer to start/run in 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

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Re: Avast 17 : can't open user interface!
« Reply #6 on: February 09, 2017, 03:55:09 PM »
Ok, done. And it worked! Thanks for help!

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Re: Avast 17 : can't open user interface!
« Reply #7 on: February 09, 2017, 04:03:00 PM »
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