I am using Xp Home. All the up to date service packs, net frameworks and updates are installed. Installed 'Microsoft Fix It Center' in Dec 2010 when having trouble with internet connection. (That problem turned out to be a 'Hot VP' at the exchange
and nothing to do with my equipment). The 'Microsoft Fix It Center' program worked without problems then but now appears to be corrupt and I am unable to uninstall in the usual manner.