I too have the same prob as benyam dessu had. My prob is different as in that i have 2 xp home systems and now only 1 H.D. If i follow gemini4's fix through the system Startup way how do i know which one to delete as they both are xp home. Only difference is that in the startup recovery section on enetering the first one it says-
Microsoft Windows XP Home Edition"/fast detect
The second Says-
Microsoft Windows XP Home Edition"/fast detect/noexecute=optin
Obviouisly i dont want to delete the wrong one ! Ha Ha, we do get into some ruts huh!