Steps:

1. Open up the "run" command (if it is disabled use 'Windows Key' + R)
2. Type in "regedit" but without the quotations. Then push enter.
3. Navigate to:
4. [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer]
5. Look for the value name "NoViewContextMenu" (if no such value exists, then just go ahead and create it)
6. Make sure the type is REG_DWORD
7. Type in a 0 to disable right clicking and a 1 to enable right clicking.
8. Restart your computer after the modification.

   Tips:

Make sure you create a backup of your registry and create a system restore point.

Warnings:

You can mess up your computer if you don't know how to use the registry editor properly.