To edit registry of any program installed on your computer, You have to access to windows Registry editor. here you,ll learn how to edit registry in windows using windows registry editor.
If your registry editor has been disabled by a virus attack and you are unable to access registry editor, read how to enable registry editor
To access to windows registry editor, click on the START menu button on your desktop and open the RUN program.



When the RUN program appears, type REGEDIT in the text field and click OK or hit ENTER button on your keyboard.

Now a program will be opened, this program is called REGISTRY editor. In the registry Editor, find the software and its string and edit or delete any registry key or value you wish to edit or delete.

To Delete a value, Right click at that value, select DELETE, click YES on the confirmation. To modyfy, RIGHT CLICK on the String and change the input data and click OK or SAVE.

For Example, if you want to Modify, Delete or Rename Yahoo! pager`s Auto Login registry string,  heres how to do that. See the screenshot below.

NOTE: Also be sure to creat backup of your registry before modifying any registry values or strings. to creat a registry backup, Click at FILE menu in the registry editor and select EXPORT and then save the registry backup.

Hope this little tutorial was helpful for newbies.

Any comments, suggestion are welcome, Don`t to hesitate posting below.