What is Registry Editor ?

The Windows registry is a directory which stores settings and options for the operating system for Microsoft Windows. It contains information and settings for all the hardware, operating system software, most non-operating system software, users, preferences of the PC, etc.

How to make changes to the Windows Registry.

Note : You should make a backup copy of the registry files (System.dat and User.dat) before you edit the registry.

Back up by Exporting a Portion of the Registry

Click the Start button, click Run, and type REGEDIT. Click OK. 

1. In the Registry Editor, select the key you want to back up.
2. From the Registry menu, choose Export Registry File. 
3. In the Save In list, select the folder where you want to save the backup. 
4. In the File Name box, type a name for your backup file, such as “Options” or “Backup.” 
5. In the Export Range box, be sure that “Selected branch” is selected. 
6. Click Save. The file is saved with a  .reg  extension.

WARNING: Using Registry Editor incorrectly can cause serious problems that may require you to reinstall Windows. We cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.

How to open Registry Editor ?

• Click Start, and then click on Run.
• Type “regedit“, then click on OK.
• This will open the Registry Editor.
• just Press “Ctrl + F” to locate the key that contain the value you want to delete or modify.