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HouseHusband
07-30-2015,
Don't know if post this here or on the Windows 7 forum, anyway...
I uninstalled Avast Antivirus on my W7 PC but I still have the following directories:

hydroninja
07-31-2015,
Hi The Man from Oahu http://www.bleepingcomputer.com/forums/public/style_emoticons/default/smile.png

These looks like manifest files and folders from the Windows store (WinSxS folder), I imagine that you can safely delete them if avast! isn't installed anymore on the system. However, avast! have a tool called avastclear.exe which can be used to clean the remnants of avast! after an installation, or uninstall it if you cannot uninstall it correctly via the Control Panel. So I suggest you to give this tool and the instructions that comes with it a try first.

John_Cena
08-01-2015,
Anti-virus software components insert themselves deep into the operating systems core where they install kernel mode drivers (http://www.codinghorror.com/blog/2008/01/understanding-user-and-kernel-mode.html) that load at boot-up and create files/folders/registry entries in various locations. It is not uncommon for some anti-virus programs to not completely uninstall itself using the usual method of Programs and Features or Add/Remove Programs due to the presence of related services and processes running in the background. Most anti-virus vendors provide clean-up utilities or removal tools as noted by Aura.

These tools are used to remove remnants left behind after uninstalling, or for a failed uninstall or failed reinstall. Remnants include related registry entries, files and folders created in various areas of the OS.

Iangeupdam
08-02-2015,
Thanks for replying.

Ahm... that tool seems to be to uninstall Avast, I already did that.

Itz_Paradox
08-05-2015,
This tool will also clean up the remnants left behind by avast! so I would still give it a go.

Also if the files are still there after, let me know and I'll instruct you on what to do next.