Windows Secret
Disabling Display of Drives in My Computer
This is yet another trick you can play on your geek friend. To disable the display of local or networked drives when you click My Computer go to :
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
Now in the right pane create a new DWORD item and name it NoDrives.

Now modify it's value and set it to 3FFFFFF (Hexadecimal) Now press F5 to refresh.
When you click on My Computer, no drives will be shown. To enable display of drives in My Computer, simply delete this DWORD item. It's .reg file is as follows:

REGEDIT4
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] "NoDrives"=dword:03ffffff

Pop a banner each time Windows Boots
To pop a banner which can contain any message you want to display just before a user is going to log on, go to the key:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\WinLogon

Now create a new string Value in the right pane named LegalNoticeCaption and enter the value that you want to see in the Menu Bar. Now create yet another new string value and name it: LegalNoticeText. Modify it and insert the message you want to display each time Windows boots. This can be effectively used to display the company's private policy each time the user logs on to his NT box. It's .reg file would be:

REGEDIT4
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Winlogon] "LegalNoticeCaption"="Caption here."

Secure your Desktop Icons and Settings
You can save your desktop settings and secure it from your nerdy friend by playing with the registry. Simply launch the Registry Editor go to:
HKEY_CURRENT_USER\Software\Microsoft\Windows\Curre ntVersion\Policies\Explorer

In the right pane create a new DWORD Value named NoSaveSettings and modify it's value to 1.
Refresh and restart for the settings to get saved.

Deleting System Options from the Start menu
You can actually remove the Find and Run options from the start menu by performing a simple registry hack.
Again like always Launch the registry editor and scroll down to the below key:

HKEY_CURRENT_USER\Software\Microsoft\Windows\Curre ntVersion\Policies\Explorer

Right-click on the right pane and select New, DWORD Value. Name it NoFind.(To remove the RUN option name it NoRun). Double-click the newly create DWORD to edit it's value and enter 1 as its value. This will disable the FIND option of the Start Menu and will also disable the default Shortcut key(F3 for Find.)

To restore the Run or find command modify the value of the DWORD to 0 or simply Delete the DWORD value.
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