I have two Windows XP Pro installed in my computer one in C and one in D. This happened by mistake when I was reinstalling Windows in C when asked opted for fresh installation. I have Win xp setup files in my F drive. Now I WANT TO FORMAT MY C DRIVE and reinstall Windows XP from the installation files in my F drive. If I format C drive will the Windows XP installed in D drive cease to function or will it function and I can directly install windows from F drive to C while running Windows XP on Drive D: Could any expert kindly give me step by step instructions ( detailed) with DOS commands so that I could Format C and reinstall Windows XP either with a bootable disk or directly from F when booted to Windows on D drive. Any hardware engineer with thorough knowledge of Windows may kindly help me out. Regards/K R Balakrishnan Iyer/Bombay/Maharashtra/I

is c and d partioned in one hard drive?

start with the :D: version format the :C: drive reinstall from the :F: drive to C as a new install restart with the :C: version reinstall from the :F: drive onto :D: as a new version to fix the dual boot which will disappear when you format :C: