timmendorf.. first download a wimpe disk or create one.
have it on a dvd or flash disk ready to boot (first test it boots)...
if so, then yes, you can start playing around... change it to b from z just a drive letter should be fine yup.
If system becomes unbootable.. its NOT permanent at all, just needs some manual typing to fix (from the aforementioned wimpe disk).. worst case scenario would be to move the bootmanager manually to your new C , then u cud delte that partition + have the boot active system in right place. but anyway, id recommend my scripts for that but I dont think im releasing them as open source after all, as I got no feedback at all from this forum members, which I would of appreciated.
Ayway, as long as you have that wimpe disk, and it fails I guess I can help you as long as u have internet to come and ask again n explain what went wrong.
but hint: boot with wimpe , then go to your new C ,
I build a 'mikepe' with my program I wrote (which has bootrec.exe as well),
so i run bootrec /mbr (so i guess forget this option)
( i think it will work without this anyway.. if not OOPS.. you can make a wimre from your installation, again my program SUCK does this all for me
run from \windows\boot
bootsect /nt60 all /force
go to old C (Z
attrib -s -h
del *.* and/or format it.
your wimpe disk is X:
copy files from X: as explained in this file i give you
build the bcd on your new C:
off you go.