Dual Boot - Two Vista Installations - delete one?


I am working on a computer that has two Vista Home Premium installations on the same drive. The original is on partition C: and the second is on partition D: . I am wanting to format the C: partition but cannot find a way to do this.

I installed EasyBCD and deleted the C:\Windows version from the entries list. This was successful in that it no longer comes up as an option when I reboot.

When I try to reformat the drive via the Computer Manager, or the Command Prompt it says either "you do not have permission" or "access denied."

I haven't messed with the Vista Bootloader in EasyBDC as of yet because I was afraid that it would end up messing up both installations of Vista.

What do I need to do to gain access so that I can nuke the C: installation? Can EasyBCD do this for me?

Thanks for your help!


Telephone Sanitizer (2nd Class)
Staff member
You need to determine in Disk Management, which Vista is "system" (where the boot files are)
That's probably C: which is why you can't get rid of it.
If so, using EasyBCD 2.0 latest build / Diagnostics / Change boot drive, you can copy the boot files to D: and that will become system.
Boot D again so that the new BCD is used, then the C: partition should be clear for format.