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Unable to delete Avast 5 Free Anti-virus

by Harv / April 9, 2010 10:58 AM PDT

I installed Avast 5 Free Anti-virus on a Windows XP computer with Win7 and did not restart my pc immediately and probably corrupted some files.
Now, the Windows Security Alerts icon constantly appears in the system tray. Windows Security Center under the heading "Virus Protection" indicates that avast! Antivirus reports it might be out of date.

I tried to delete Avast from Add or Remove Programs and only by deleting some keys in the registry associated with it was I able to remove it from the Programs list. However, when I tried to delete Alwil Software and its keys and sub-keys I got this error message: Cannot delete Alwil Software: Error while deleting key. Permission for this key includes Everyone and still it cannot be removed.

When I went attempted to delete Alwil Software in Program Files, I got this message: Cannot delete ashShell.dll. Access is denied. Make sure the disk is not full or write-protected and that the file is not currently in use.

I tried reinstalling Avast 5, but it will not install and shows a bunch of error messages. In the meantime, I installed Bitdefender Free antivirus version and the Window Security Alert keeps showing up in the system tray.

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Unable to delete Avast 5 Free Anti-virus
by Ray_moe / April 9, 2010 11:47 AM PDT
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In Safe Mode, Avast files does not appear on desktop
by Harv / April 9, 2010 1:47 PM PDT

I downloaded the file and put it on the desktop, but the Avast file does not appear there in Safe Mode. And, the file won't execute in Regular mode.

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Try this
by brett_windows_team / April 15, 2010 8:33 AM PDT
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Finally able to install Avast 5
by Harv / April 22, 2010 8:25 PM PDT
In reply to: Try this

I was able to install the latest version of avast after going into Safe Mode and deleting Alwil Software and avast related sub-folders. Thanks to everyone for the help.

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im having same problem i get a code that sayes asi-509.vpx?
by lydia35_2000 / October 22, 2012 5:39 AM PDT

can anyone help me remove it?

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Can We Presume..
by Carol~ Forum moderator / October 22, 2012 8:32 AM PDT


Can we presume you tried all that's been suggested in this thread?

Did you download the Avast Uninstall Utility and try to remove it when in Safe Mode?

If you have tried everything suggested in this thread and haven't been successful, I would then recommend trying what was suggested in this post at the Avast Forum.

The Avast user's error message read, "Error reading product data from C:\Program Files\Avast Software\Avast\setup\part-setup_ais-557.vpx.setup cannot continue". Did your error read anything like it? Or was it only .'asi-509.vpx" as you posted it?

A bit more information would help us.. help you.

Best of luck..

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cant uninstall avast5..:(
by manny3192 / September 20, 2013 6:27 PM PDT
In reply to: Can We Presume..

when I try to uninstall it from the control panel it shows this error " Error reading product data from C:\Program Files\Alwil Software\Avast5\setup\. Setup connot continue " ....what to do now ...I am really fed up with this..

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Sorry but read the post you replied to.
by R. Proffitt Forum moderator / September 21, 2013 5:57 AM PDT

I see links in blue for a removal tool.

I'm curious why you posted a question that looks to be answered by the post you replied to. Why?

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