My hp1012 was working fine, when I installed an epson C60 driver on the same machine. With C60 hardware not yet installed, I downloaded C60 manual as pdf file, opened dialog box for C60 just to view the printer preferences and properties, etc. Suddenly got a message: SPOOLSV.exe has generated errors ...etc. When I checked printer folder, both were gone. Re-installing hp 1012, got message: the RPC Server is unavailable" ??? Strangely, got same message on my other computer as well.