Knowledgebase: Avast Removal Issues
Is it necessary to uninstall previous versions of avast! before installing avast! 6.x ?
Posted by Samuel Turi on 13 February 2012 10:24 AM

Is it necessary to uninstall previous versions of avast! before installing avast! 6.x ?


You don't actually need to do anything to uninstall previous versions of avast!, because the avast! 6.x installation program is able to detect the existing installation of avast! and upgrade it automatically. If you are experiencing any problems with your computer, e.g. if your operating system has been corrupted by some other 3rd party software which prevents avast! from being correctly uninstalled, you can uninstall the program using the avast! Uninstall Utility
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