system
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I too as the others have received this error msg when installing avast free 2014 on an XP PRO SP2 machine. I too have followed all the advise as listed above, uninstalling rebooting, using the avast uninstaller, going thru the registry to remove every trace of avast and so on. Here are the screen shots of the error msgs i received when trying to register and start avast services. Any help is greatly appreciated.