I have an older HP 1.40GHz Pavilion desktop with a 40 Gb Hard disk (C drive) and an added 80 Gb Hard disk (G drive). Other drives are D drive( HP Recovery, E drive (CD RW) and F drive (DVD RW). C drive is the primary boot disk with all the program files. G drive is a data disk and is 100% available for ... whatever. The C drive is starting to sound a little grindy. I think she is on her last legs. I'll probably drop by Best Buys and pick up a Western Digital 120 Gb hard drive for $50 (after rebates) The question: What is the easiest manner to replace your primary drive without reloading everything onto a new disk? My thoughts - can I transfer everything (diskcopy?) from the C drive to the G drive, then set up the G drive as the primary boot disk in the setup files (F2 access as windows boots). Then the replacement drive (120 Gb Western Digital drive) would become a C drive data disk. Is this workable or is there an easier way? Wouldn't diskcopy also copy the 40 Gb format - halfing the capacity of the 80 Gb HD? (Have you guys figured out that I'm an old MSDOS guy, yet? ) Thanks for the help.