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How to change the drive letter of the boot drive in Windows XP SP3?

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Last Modified: 2012-08-14
hi
Earlier i partitioned my 250 GB hard disk into 2 drives in my laptop. one is 50GB(C:drive) and another is 200 GB(D: drive).
OS installation files and system files are in C drive.
Recently i formatted C: drive and i tried to reinstall the OS. When i am installing OS we have an option of choosing in which partition(drive) we want to install. Under that option i got  D: drive with 50GB and C: drive with 200 GB.   my drive letters was interchanged.

Before Formatting:
C: drive = OS with 50 GB space
D: drive = Others with 200 GB space

After Formatting
C: drive = OS with 200 GB space
D: drive = Others with 50GB space

I also tried to change the drive letters in the disk management but i got an error "windows cannot modify the drive letter of your system volume or boot volume".
I also tried Microsoft help  in their website but it doesn't work.
Can any one suggest me how to change the drive letters?
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Author

Commented:
Hi
i already tried that one. Bu it doesn't work.
When i fallowed the above link and after restarting my PC i am not able to access OS. So i tried to install it again.
noxchoIT Product Manager
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Top Expert 2009

Commented:
Do I understand you correctly - you want to change the drive letters for partitions without reinstalling Windows, am I right?
What is the order of partitions in Windows Disk Management? Can you take a screen shot and post it here?
I know one way to do this but first I would like to see your current partition order.

Author

Commented:
hi noxcho
you are right. I want to change the drive letters of partitions without reinstalling OS.


untitled.bmp
IT Product Manager
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Top Expert 2009
Commented:
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Author

Commented:
hi noxcho
thanks for your advice.
Do i need to format both the drives before i install the OS?
If i format both the drives then the drive letters will change at that time?
noxchoIT Product Manager
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Top Expert 2009

Commented:
Not simply format but delete both partition and recreate them according to the plan of system and data partitions. In my own system I have 25GB system partition and all other for data partitions.
So boot from Windows install CD - select new installation and then when it suggests partition to install delete both and create new one. This will release the drive letters and let you install to C:
In other words your drive must be empty before you start Windows installing.
noxchoIT Product Manager
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Top Expert 2009

Commented:
And thanks for points.

Author

Commented:
ho noxcho
thanks...
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