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Group Policy to Hide any Drive(letter)

Today I ran into a little snag. After installing App-v 4.6 Agent I ran into the issue that the P: drive was showing up on my machine, which of course bothered me because that would be unacceptable on a client machine.

I researched around a bit and found a great solution with which you can hide any set of drive letters you want:

I first took the registry key to hide drive letters from this website:
http://www.winvistatips.com/hide-hard-drive-t133674.html

I then used the reg-to-admx/adml converter from:
http://gallery.technet.microsoft.com/ScriptCenter/en-us/8c703a2e-4685-4093-a1fc-dec107c53d13

I then further edited the admx and adml file to for example actually accept the large numbers and also to make it look pretty. Here you can download the admx template that I ended up with:
http://blog.andreasfelder.com/shared/Hide-drive.zip

To install the template drop the unpacked version into your PolicyDefinitions folder under:
\\"DC-NAME"\SYSVOL\"DOMAIN-NAME"\Policies\PolicyDefinitions

Have fun with hiding any drives you want and I will never know why Micorosft didn't include more options in their default policy.

Later,

Andreas