This is something so important to the startup of my Vista machine. I don't know where else to turn. I don't have my Vista disk, but I think via safe-mode I could get command prompt up. I made a uxtheme_backup.dll, now I need to know how to rename a file with command prompt. I'll give you all the info, can you give me the command? it is located in C: Windows/Resources/System32 and the file is uxtheme_backup.dll and I need it to be uxtheme.dll Edit: DISREGARD, fixed it. Phew.