Windows 7: Hide Partition

I recently install a copy of my OS to another partition as a backup in case its needed. How can I hide it from explorer on my normal OS WITHOUT REMOVING THE DRIVE LETTER which is currently set to W. Iv tried using the registry method with no success.

I used the decimal value 4194304 which I am pretty sure is right for the letter W.

Why don't you just image the backup to an external drive. Then you can pull it in any time and it will not clutter up your system. http://www.sevenforums.com/software/...e-macrium.html

I already use norton ghost. But sometimes i want to replace system files to customize my system and once i rename them to backup, i cant copy it back in, so I now use this to copy system files onto it. Also if its just 1 system file missing, I dont want to run a whole backup, i would just rather copy it from this to my real installation.

This is command used to restore or repair system files: sfc /scannow

Not so much a duplicate installed hidden OS.

You need not run a whole backup. You can pick the files from the Ghost image just as well. But as Greg says, the System File Checker can do that for you too - in case you have not tweaked your system. If you did tweak your system and replaced original system files, then SFC will undo your tweaks. That happened with my Vista sidebar on Windows 7 when I was playing around with SFC - it rolled 95 files back. Fortunately it was easy to fix.