How to Hide the drive letter in Win XP?

 The Way How to hide a drive letter in Windows XP
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1. Click Start -> Run type regedit in the box and click OK

2. Navigate to:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\ Explorer

3. From the menu, navigate to Edit -> New -> DWORD Value

4. Name the New Value NoDrives

5. Next, Right click NoDrives and select Modify, now check the Decimal option and under Value Data enter a decimal value for the drive you would like to hide.
For example to hide C you would enter 4.

See the list below for more values:
A=1
B=2
C=4
D=8
E=16
F=32
G=64
H=128
I=256

6. Click OK once finished and restart your PC to verify the drive letter is no longer displayed.