Basically, I got an HP pavillion 750 running windows xp2002 version5.1 build2600. My operating system, according to an info utility is windows_NT. I have heard that hp has used fixed-up, patched up beta versions of xp on some of their computers but my system runs well, so I think I've got the real xp. Here is my question. After formatting recently and installing an up-to-date factory bundle(7 disks to be exact) I have had little or no problems but since nothing was done manually I don't know which patches are installed and more importantly, whether or not sp1 is installed. Under add/remove programs it only says "hotfix kb832980&kb824146" Is there some command line things I can do in dos to figure out which ones are installed? Because I'm afraid If I go to the microsoft site and just start installing patches it might overwrite some good ones or something.