How to make restrictions in windows xp using registry editor

You can perform all the below hacks using Regedit (Registry editor).You can invoke this by typing Regedit in Windows Run dialog box click here to get a detailed tutorial on Registry by me All about Registry .
How to disable right click in windows xp:In windows xp you can disable right click on desktop to prevent creation of newfolders,shortcuts,briefcase etc.
After opening Regedit dive into
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Policies 
In the right side pane create a new Dword called NoViewContextMenu and assign it 1

Just restart the system to see the magic..........
How to Disable beep sounds in windows xp:
After opening regedit navigate to
HKEY_CURRENT_USER\ControlPanel\Sound  .On the right side pane you can see a string called Beep.Modify its value to NO. If u cannot locate Beep create a string with name beep and assign it No

How to Disable New option in right click context menu:

Navigate to the key

  HKEY_CLASSES_ROOT\Directory\Background\shellex\ContextMenuHandlers

Now delete the New subkey .

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All about Registry

Before showing the tweaks  you can make using windows registry.I would like to give a indepth tutorial on what is Registry ,how can we use it to suit our needs.
Definition:In simple terms "Registry is a hierarchial database where you can store information related to hardware ,System software(operating system),application software,system preferences and user preferences."
The hierarchial organisation of the database is divided into machine information,user information and software information.When the system starts it looks in the registry for the configuration settings of hardware and software installed.Its organisation depicts the directory-subdirectory concept in windows explorer. The registry is divided into six main divisions called HIVES  which are inturn divided into keys and subkeys which contain values where information about software,hardware and users is stored.
The values are divided into 3 types they are DWORD,BINARY,STRING based on the usage.
DWORD  is used for storing binary values where you can store list of values.Each value leads to different behaviour of OS,HARDWARE,APPLICATION SOFTWARE.String is used for human readable format.While BINARYis for storing raw data in hexadecimal format which contains hardware settings.

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