Windows registry contains complex system information about how the programs will run. Windows in general will make changes to registry every time a new hardware and software is installed, removed or changed. Usually, editing a registry is vital in removing threats from the computer. Some anti-virus programs may remove files but not the value or entries it threat have registered.
It is important to back up the registry before making any changes to it. Incorrect changes to the registry can result in permanent data loss and serious problems on Windows that may require you to reinstall the whole Operating System.
Editing registry in Windows XP:
1. On Windows menu, Click Start > Run
2. Type regedit at the box
3. Click OK
4. Windows registry will appear.
How to run registry editor in Windows Vista and Windows 7:
1. Click on Windows Start Menu.
2. On “Search Program and Files” type regedit.
3. The program will appear on the result. Double click it or just press Enter on the keyboard to run registry editor.
4. User Account Control windows will appear with the following message:
Do you want to allow the following program to make changes to this computer?
Program Name: Registry Editor
Verified Publisher: Microsoft Windows
5. Click Yes. Registry Editor windows will appear.
If in case it was disabled by a virus or any sorts of infection, you can follow the procedure to enable Registry Editor.