• You can display a legal notice on startup to warn users from a illegal use of your computer.
• For this open registry editor and navigate to following path.
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\system
• In right side panel you can see two entries named “legalnoticecaption” and “legalnoticetext”.
• Just change the value you want.
• Close registry editor.

• Instead of hiding drives you can deny their access from users.
• To do this look up the Hide drive tweak.
• Instead of creating ‘NoDrives’ key,you have to create "NoViewOnDrive" (case sensitive) value.
• Other all things remain same.
• Delete the DWORD value to give access to the drive.

• You can block user from running all application expect you listed.
• To do this setting go to the path below after opening registry editor.
• HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
• Create a new DWORD value and named "RestrictRun"
• Set its value to 1
• Then create a new sub-key “RestrictRun”
• The path should look like this.
• HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\RestrictRun
• Now you have to create a list of applications that are allowed to run.
• Create a new String value for each application.
• You must name the string to continue numbers like 1,2,3,4 and you can’t break the chain.
• Add the name of application to restrict to run in “”.
• Like our favorite Registry Editor to “regedit.exe”
• Restart windows to take effect
• Also note that this list also applicable to you though you are a creator of it and also an administrator. So be careful.
• Also you can quick put or remove Restrictions.
• For this you have to edit the first key you have created named “RestrictRun”
• Set it to 0 to remove the restriction.
• A inbuilt Restriction Manager

• This registry tweak enables you to hide your all or any one drive of My Computer.
• After doing this registry change one or more or all drives will not be shown in My Computer.
• This trick will be helpful in keeping your private data safe from others.
• Open registry editor.
•  Navigate to this key.
•  HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
•  Create a DWORD value named ‘NoDrives’(case sensitive).
•  Now put its valve in decimal as you want to hide the drive.
•  Here are the values to put as the drive character.
•  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
•  If you want to hide D drive then put its value to 8.
•  If you wants to hide C and D drive both then put its value to Number of C+Number of D.
•  Means 4+8=12
•  If you want to hide all drives then put its value to 67108863 OR 3FFFFFF (Hexadecimal).
• You have to do the same thing as above on path below.
• HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
• Restart computer to take effect.
• Delete the DWORD value that you created to Unhide the drives.

• You can set how much time to take to popup a menu.In simple words how much time you have to put the mouse on a menu extension aero to see the menu.
• To change this time delay(by default 20 seconds) open registry editor.
• Navigate to this key.
• HKEY_CURRENT_USER\Control Panel\ Desktop
• Look up for the key ‘MenuShowDelay’ in Right side penal.
• Change its value to as you want in ms.Number must be between 0 to 4000.
• Use 0 for no time delay in menu display.
• Close the registry editor.
• Now you can see so many other settings also can be changed for this registry key.
• Try it yourself.

Some time programs become non-responsive.If you see in task manager their Status then it will be Not Responding instead of Running.
Now we can set to windows to end them automatically as they become nonresponsive.

Here are the steps to set them.

• Open Registry Editor.
• Navigate to below key.
• HKEY_CURRENT_USER\Control Panel\ Desktop
•  In Right side panel look up for the REG_SZ entry ‘AutoEndTasks’ and Modify its value to 1.
• You can also set time for waiting before end the application if an application becomes non-responsive.
• For this setting on same path find the ‘WaitToKillAppTimeout’ key in right panel and change its value to the time you want.(Write time in Milliseconds).

                   Some people don’t use Recycle Bin; they delete their files directly by pressing ‘delete’ with ‘shift’. So if you are among these people and if you are not needed the recycle bin on desktop then you can delete it from desktop.

• Open Registry Editor.
• Navigate to this key.
•  HKEY_LOCAL_MACHINE/SOFTWARE/Microsoft/Windows/CurrentVersion/explorer/Desktop/NameSpace
• Delete the {645FF040-5081-101B-9F08-00AA002F954E} sub key of NameSpace key. (This is GUID of Recycle Bin).
• Understood??? You can add all the special folders on Desktop using this
  logic.
  Just add the GUID to the path given above.
  You have to create a new key for each GUID and add it to the NameSpace folder.
  I have explained all the GUIDs of special folders ago in this chapter.
  E.g. If you wanted to add fonts folder on desktop look in Rename Recycle Bin topic for fonts folder’s GUID.
  Ya it’s {D20EA4E1-3957-11d2-A40B-0C5020524152}.
  Just create a sub key in NameSpace key named the GUID written above with brackets.(You have to just create a key, nothing to do in right panel)
  Close Registry Editor.
  You need not to restart windows.
  It will come on Desktop.

•  Open registry editor and go to the key.
•  HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \CurrentVersion \ Explorer \ My Computer \ NameSpace \ DelegateFolders
• You must see a sub-folder named {59031a47-3f72-44a7-89c5-5595fe6b30ee}.
•  Delete the key.
•  Congrats!! You have done successfully.
• Add that folder again to get it back.

You can not find rename option in desktop’s recycle bin’s right click menu.
For enabling the rename option do the following steps.

•  Open Registry Editor

• Go to below path by browsing registry.

• HKEY_CLASSES_ROOT/CLSID/{645FF040-5081-101B-9F08-00AA002F954E}/ ShellFolder

•  To change the features shown on the below, edit the value of "Attributes" and set it to one of the values below

• For example to add the ability to Rename the Recycle Bin browse in registry the path [HKEY_CLASSES_ROOT\CLSID\{645FF040-5081-101B-9F08-00AA002F954E}\ShellFolder] and change the value of "Attributes" to "50 01 00 20"

• Note: The default value is "40 01 00 20",if anytime you want to reset it.

By default Windows XP doesn't show the Administrator in the user list at the welcome screen.
Here's a way to get it back.
Start Registry Editor.
 Now go here by browsing registry.
HKEY_LOCAL_MACHINE\Software\Microsoft\WindowsNT\CurrentVersion\Winlogon\SpecialAccounts\Userlist
 create a new DWORD entry and name it as Administrator
 Change its value to 1.
 Exit registry editor and reboot computer for the changes to take effect.
 To change it back change its value to 0 or simply delete key

• Open Notepad.

•  Type the below things.

• Save the file any where in hard disk as regenable.inf (you can give any other name).

• To start registry editor go to Start Run and type regedit and press enter.