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Vista & Win 7 Dual drive disk issue...

827 Views 7 Replies 2 Participants Last post by  452082
Brace yourself because this is going to be confusing:

OK so I made a new disk drive from unallocated memory (130gb) for Win 7 ultimate 64bit which I bought recently so now I have dual boot along with vista home premium 64bit. I have 3 disks, C (vista), D (data) and E (supposed to be win7). After I installed Win 7 on E drive, whenever I boot up Win 7, E turns into C... and when I boot with vista, its all normal again but booting up with win 7 makes C (vista) into D (vista) and makes D (data) into E (data)... is anyone with me?

So far I'm amazed there's been no program with any path conflicts yet...
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I just found out that when I made E disk, it's a logical drive and maybe that's why it turns into C when I boot up Win 7. Can anyone help me? Sry for bumping
I converted E disk from a logical drive to primary partition, reinstalled Win 7 and still get the same problem. When I boot up, Win7 appears on C where vista is supposed to be and when I boot up vista, vista appears on C...

Any help appreciated...
Yeah I realized that but the letter of the OS doesn't bother, it just changes the letter of my DATA drive which is where I keep almost everything and the programs are not registered in the registry but most of them work somehow. Thx for ur reply
Well it didn't show how to make a constant letter on my DATA drive, only on OS drives. But thanks anyways.
OK I found the magical solution:

Go to the following registry key:


1. Find the drive letter you want to change to (new). Look for "\DosDevices\C:".
2. Right-click \DosDevices\C:, and then click Rename. In Windows 2000 you must use Regedit instead of Regedt32 to rename this registry key.
3. Rename it to an unused drive letter "\DosDevices\Z:". (This will free up drive letter C: to be used later.)
4. Find the drive letter you want changed. Look for "\DosDevices\D:".
5. Right-click \DosDevices\D:, and then click Rename.
6. Rename it to the appropriate (new) drive letter "\DosDevices\C:".
7. Click the value for \DosDevices\Z:, click Rename, and then name it back to "\DosDevices\D:".
8. Quit Regedit, and then start Regedt32 (not required in Windows XP).
9. Change the permissions back to the previous setting for Administrators (this should probably be Read Only).
10. Restart the computer.

I found these steps from a site and I didn't do anything with security permission things so if anyone is experiecing it, try changing drive letter on the registry, works like a charm. (did this on win7 ulti 64bit)
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