you could use also to disable your remaining drive letters by using this one:

This is the link:
http://thetechcorner.net/page/11/

Windows XP Tweak: Hide Drive Letter From My Computer
[23 Feb 2008 | 3 Comments | 2,748 Views]
This tweak will hide a drive letter from showing up in My Computer, however the drive will still be able to be accessed manually by typing in the drive letter in explorer.
—-Tweak Steps—-
1) Start > Run > regedit
2) Goto HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
Explorer
3) Right click in the blank space and choose New > “REG_DWORD (DWORD Value)”

4) Name is “NoDrives”
5) Right click on “NoDrives” and select Modify
5) Following the table below, enter in a DECIMAL value!!

Drive Letter
DECIMAL Value

A
1

B
2

C
4

D
8

E
16

F
32

G
64

H
128

I
256

J
512

K
1024

L
2048

M
4096

N
8192

O
16384

P
32768

Q
65536

R
131072

S
262144

T
524288

U
1048576

V
2097152

W
4194304

X
8388608

Y
16777216

Z
33554432

All Drives
67108863

To Hide Multiple Drives, Add their values together.
Example: A+D = 9 Decimal Value
A+C+D = 13 Decimal …



Read more: http://thetechcorner.net/page/11/#ixzz0VFSS5V8K

Hi,

I've been using sandboxie for a period of time, about a month or so (trial version) and find very interesting and excellent.
Anyway, I start using it becuase I got tired of reimaging my hard drive every week because of damn people with infected
USB memory storage devices.

Anyway the question is; is there a way to limit Windows to assign the drive letter up to F:\ and not futher?
Just to make it clear, I have C: for system, D: for data, E: for CDROM and F: for external storage (anyone's).
So, I dont want Windows to assign driver letter of G:\ or greater, so the range would be C: to F: ONLY.

Is this possible?

Thank you for your help.