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I used Clonezilla to clone my existing hard drive to a new one I bought. I then changed the BIOS to set the new drive as the first in the boot sequence. I'm pretty sure that I'm still running Windows 7 on the old drive. My old drive is marked as C.

Now that I don't have a disk drive any more, how I do I swap the drive letter from J: to C:?

I tried to change it in the disk management section of "Manage", but it reports: "the parameter is incorrect".

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First try to remove your old hard drive from boot sequence and if that won't work unplug it.

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1  
Can you add more context to this answer to explain why it solves the problem. At the moment it's little more than a comment. – ChrisF Nov 4 '12 at 11:31
    
@Bougatsas this doesn't address how to rename the drive letter to C – Hoppe Nov 4 '12 at 15:02
    
@Bougatsas I unplugged the old hard drive, and the Windows Boot Manager now reports: "Windows failed to start...". – Hoppe Nov 4 '12 at 15:12
up vote 0 down vote accepted

I ran the windows 7 recovery disk. I ran the startup repair. I went to the commnand prompt and ran all of the bootrec command options.

I think this made some progress but didn't fix it.

Last I used the command prompt as follows:

cd [cd/dvd drive]
bootsect /nt60 sys /mbr

And this fixed it! The command was found thanks to this youtube video.

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