Error while deleting Registry key in Windows 10

If when you try to delete a registry key in Windows 10 or Windows Server, you are unable to delete it and you get an error message: Error while deleting key, then this article may interest you.

Error while deleting Registry key

This can be caused if you attempt to delete a registry key that contains embedded null characters. These characters are not visible when viewing the registry entry.

To delete a registry key that contains an embedded null character, you must first replace the null character with another character.

1] Use Systernals RegDelNull tool

You can accomplish this by using the RegDelNull tool from Sysinternals.

This command-line utility searches for and allows you to delete Registry keys that contain embedded-null characters and that are otherwise undeletable using standard Registry-editing tools. Deleting Registry keys may cause the applications they are associated with to fail.

2] Use Registry DeleteEx

Registry DeleteEx can delete the keys that the Registry Editor and other tools fail to do so. The tool deletes locked keys and values using a kernel-mode driver. This means any Registry value can be deleted even if it has been locked by an application or malware.

3] Take ownership and then try to delete

Using our free tool RegOwnIt, you can take ownership of the Registry key and then try to delete it.

All the best.