Don

bigbw wrote:
> Dual boot system setup.. Xp on C:, D: is data and Vista on E:..

That description is ambiguous, unfortunately -- typically the letters
will change when you boot the opposite OS. Normally, Vista will call
its own partition C: and re-letter everything else as needed.

> I have to
> replace the D: drive and want to move Vista to it and use E: for storage.

Is E: a third hard drive, or is it a second partition on one of the
other drives?

> can do a disk copy easy enough, but what do I do to make sure the system
> still dual boots..

The important thing: where are Vista's \boot directory and bootmgr.exe
located? And ntldr and boot.ini also, of course.