Yesterday I downloaded windows critical update KB891711 and today my PC is slow. I am on windows 98Se using Gateways mode 667 Pn ( 4 yeard old now)and 512 memory. I did control/alt/delete to see if something new was running ,causing my PC to crawl and I found this windows KB891711 always running.. I then went to msconfig to stop it from running at start up and that created another problem causing explorer to not work .. So I put KB891711 back into MSCONFIG. What a mess ,,,what should I do ?