How to Resolve - Changing letter of Windows 7 system partition?

Changing letter of Windows 7 system partition

Hi
is there any way to change the letter of the system partition of windows 7?
I set up dual boot with Windows 7 and Vista and on Windows 7, the system partition is G: and the Vista Partition is C:
And I want to have 7 on C:

I already tried that registry trick with the mounteddevices and I ended up with a temporary windows profile and Windows telling me everytime I tried to open a programm "Interface not supported" or "BlahBlah.exe not found", although I was able to lookup the
files with the cmd.

Tobias

Keys to the Problem Changing letter of Windows 7 system partition

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Hi Tobi1499,
 
It is not recommended, especially if the drive letter is the same as when Windows was installed.
The only time that you may want to do this is when the drive letters get changed without any user intervention.
This may happen when you break a mirror volume or
there is a drive configuration change.
This should be a rare occurrence and you should change the drive letters back to match the initial installation.
For more information check out the link given below:
http://technet.microsoft.com/en-us/library/ee829683(WS.10).aspx#BKMK_Step2
Thanks and Regards:
Shalini Surana - Microsoft Support.
Visit our  Microsoft Answers Feedback Forum and let us know what you think.

Boot in Safe Mode:

• Open Run command as previously described
• Type MSConfig
• Click on Boot tab
• Tick Safe boot in Boot option
• Select Network
• Click Apply and OK
• Reboot your system

Your system will boot in Safe mode with Networking. You may now try and open Windows Store and should not see any errors.

Another Safe way to Repair the Problem: Changing letter of Windows 7 system partition:

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