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Windows 7 will not uninstall Avast anti-virus


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4 replies to this topic

#1 Zebra237

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Posted 20 June 2018 - 04:40 PM

My Windows 7 is a rebuilt machine. Works well except that it won't uninstall Avast anti-virus. Worked to uninstall other programs. I already have another anti-virus that is working. How can I get rid of it? Avast is one of those things that you have to agree to set up an account.

 

Thanks. This is a Lenovo machine with Windows 7 Premium and an Intel chip.



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#2 sikntired

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Posted 20 June 2018 - 05:48 PM

Try CCleaner:https://www.bleepingcomputer.com/download/ccleaner/

 

DO NOT USE REGISTRY OPTION

 

Then revo uninstaller as joseibarra has recommended.


Edited by sikntired, 21 June 2018 - 04:50 PM.


#3 joseibarra

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Posted 20 June 2018 - 06:05 PM

You are attempting to uninstall Avast from...  Control Panel, Programs and Features?

 

What does "won't uninstall" mean - nothing happens, you get an error message you will relay, or something else you will describe?

 

Nowadays most AV programs have their own uninstaller programs and the one for Avast can be found on their WWW site:

 

https://www.avast.com/en-us/uninstall-utility

 

For stubborn uninstalls some folks like Revo Uninstaller which you can find here:

 

https://www.revouninstaller.com/revo_uninstaller_free_download.html

 

A comprehensive list of uninstallers and ideas is here:

 

https://www.raymond.cc/blog/comprehensive-list-of-uninstallers-or-removal-tools-for-antivirus-software/#more-2878

 

Note that if you use CCleaner it will just run the same uninstall routine that Programs and Features uses which is the uninstall string found in the registry associated with the program - but who knows...


Edited by joseibarra, 20 June 2018 - 06:16 PM.

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#4 Ghostwalker

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Posted 28 June 2018 - 02:18 AM

You say that you already have another anti-virus that is working. Installed on the same machine as the failed Avast uninstall?

Left over pieces can conflict with other Antivirus programs. You must uninstall properly. Revo free has always been excellent for properly uninstalling in the same manner as 'Programs and Features' does, then scans for left over pieces. Just look closely at it's leftover pieces to insure they are the Antivirus in question.

 

Personally I would uninstall all AV's and start from scratch. Most AV's have a seperate downloadable uninstaller to remove leftovers after a proper uninstall procedure has been done. If my first sentence is true, your machine could be locking up to some degree. Avast will tell you to use it's separate uninstaller in Safe Mode for proper usage, this could be true for whatever other AV you have.

 

Definitely make some restore points before you do anything to go back to. When I get a machine running just how i want it, I image it completely before any AV so I have a clean baseline to always go back to. Macrium free has never let me down.

 

Hope this helps



#5 The-Toolman

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Posted 28 June 2018 - 04:37 PM

Avast uninstaller

 

https://www.avast.com/en-us/uninstall-utility

 

 

You may have to install Avast to completely remove it using the Avast uninstaller.

 

 

After uninstaller Avast I would recommend using a file locator to check for any leftovers.

 

 

I use Agent Ransack or Filelocator Lite to check for removed software leftovers.

 

 

Agent Ransack

 

https://www.mythicsoft.com/agentransack/

 

 

Filelocator Lite

 

https://www.mythicsoft.com/filelocatorlite/download/


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