I was having a problem with the CD drive so I downloaded a driver from Dell support that I thought was going to help. Well, when it finished it powered down the computer. I turned back on and now instead of loading past the Microsoft screen, I get a blue screen with "STop: c0000135 (Unable to locate component) This application has failed to start because winsrv was not found. Re-installing the application may fix this problem." It is an old Dell Dimension 8250 with XP. Can someone please help?