How to scan file extension error in Windows XP

How to scan file extension error in Windows XP

File Extensions

These keys contain references to the registered file extensions. When you install a program, it automatically creates registry entries describing the file extensions associated with it.

If you uninstall a program incorrectly or an error occurs during the uninstall process, the file associations registered to this program may still remain in the registry, while the program itself is removed. This causes errors when you try to open a file with an extension associated with the removed program.

HKEY_CLASSES_ROOT
HKEY_CLASSES_ROOT\Applications
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts

Scan & Repair file extension errors in Windows XP with Registry Cleaner software

Almost all Registry Cleaner software can Scan & Repair file extension errors, such as Registry Mechanic, Regcure Registry Optimizer, and Registry Booster. Following is the detailed guide on Registry Booster.

Registry Booster fixes all the file extensions that are no longer associated with applications installed on your computer system. Many application uninstallers remove the main program files and directories from your hard drive, but do not remove the associated file extensions from the Registry.

1. Run Registry Booster, Select "Registry Scan";

2. Select "File extensions";



3. Click "Start Scan".

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