I've tried to install sp1 using various bulds and always get the same thing..Setup starts and it looks normal, then all of a sudden it just stops. no errors like I've read about all over the place, just a small box that says service pack setup cancelled. I've reinstalled my default boot screans, I have about 6 gb's of free space on my main c drive. I've never installed any prior beta build. Only the wmp9 thats been floatin around, and by the way I have no problems with that. build 2848 works fine. for now,,, At the windows update site it all looks good so I installed the IE6 sp1 update first, and no problem. I reboot and when I try the sp1 express install, I get the same thing. It downloads, setsup and just stops. same as before when I tried yesterday. No other errors have come up. just a cancelled setup. OK. I'm running a legal build= Version = "5.1.2600.0 (xpclient.010817-1148) I took that from system info. I am Lost. Also Ive been snoopin around the XP forums everywhere and this one has always been of the most help. Thanks in advance. OK ?? any ideas ? should I reset my product key ?? Does the install of a not so legit office 2000 premium have anything to do with this ?