Hello, I'm currently using a tower computer that I bought off a friend, and it runs Windows XP. I'm unsure on what SP it is, and I don't know if its professional or not. Recently, I had the "Unmountable Boot Volume" error, and I burned myself a recovery disk to fix it. When I enter "Chkdsk /r", it pauses for a second before asking for the full path and drive letter for Autochk.exe. Any fixes for this?