Kb2538242 won't install. is pc vulnerable? - microsoft, Kb2538242 won't install in xp pro. fix center said it corrected the problem, but it didn't. all other critical updates installed. windows update said it. Update kb2538242 keeps on prompting me to install it over, I downloaded and installed updates as usual but one of them(update kb2538242),which i already have installed 6 times,keeps on prompting me to install it. Update kb2538242 - stuck like ground hog day solved, Update kb2538242 i keep getting notified that i need to install this update. i install it then do a shutdown . then the update is back after restarting ? ideas ?.