ThinClient-wyse

C:Issue

Sometimes it is required to save a document or file in local c drive (actually in Flash) in

9000 terminals. There are certain local security policies set for the “User” user in XPE.

This prevents a normal user other than Administrator to access local drive. Hence if you

use any USB Hard drive/SD card reader you can’t view the contents.

Solution//Workaround

Since poledit utility is not available in XP Embedded OS we need to change a few

registry settings to accomplish this. The steps are described below: -

1. Login to Winterm as administrator.

2. Disable “Write Filter” so that the changes made stays after reboot.

3. Login again as administrator, browse to “C:\Documents and

Settings\User\Desktop” and create a shortcut for c:\windows\regedit.exe.

4. Login as User and run Registry Editor to change the value of following entries to

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Non

Enum\20D04FE0-3AEA-1069-A2D8-08002B30309D

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Exp

lorer\NoDrives

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Exp

lorer\NoViewOnDrive

5. Reboot the terminal and you get your familiar “My Computer” in user’s desktop.

This will show content of all the drives and you can save files in there.

Explanation

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\E

xplorer

NoDrives=REG_DWORD

The low order (right most) bit is for drive A: while the 26th bit is for Drive Z:

To hide a drive, turn on its' bit. These drives will still appear in File Manager. These

decimal number are to hide the drive(s):

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:

67108863

The default value in XPE is 4 meaning no access to C drive.

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\N

onEnum

20D04FE0-3AEA-1069-A2D8-08002B30309D= REG_DWORD

This registry, if set to 1 which is the default value, removes the My Computer item from

the Start Menu and the corresponding checkbox from the Start menu customization CPL.

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\E

xplorer

NoViewOnDrive=REG_DWORD

This registry is same as NoDrives key described above. The default value is 4 which deny

view access on C drive. Hence without setting it as 0 we can’t view the contents of any

drive despite the icon “My Computer” being present in desktop.