Can't you access Disk Management by typing diskmgmt.msc from the RUN box and hitting enter ?
(windows-key + r) It always worked in XP.
I never did learn the procedures to fix grub and so far I haven't needed to.
One day though, I'm sure I'll be here looking for the info...
I have my Windows boot loader, my Windows + Linux partitions all on my first drive.
A second HDD containing data, also contains the PCLOS bootloader which I access by pointing the BIOS to it.
From there I can select Windows OR PCLOS.
If I point back to first HDD in the BIOS, I get my original Vista bootloader which of course, still works.
I think this method protects PCLOS somewhat, but not sure what it does to Vista. Is Vista even sensitive to it?
I heard somewhere that Windows 7 may be.