This will change the owner of the reg keys to Administrators and give admins & system full control. This will not remove any current permissions, it only adds to them. These utilities are part of Windows Repair and no longer updated. MajorGeeks recommends you download the complete Tweaking.Com Windows Repair instead.
What will this fix? A lot of things actually. Here are a few examples.
You try to install some Windows updates but they fail. If the updates don't have permission to certain keys the updates will fail.
Software wont work. Same as windows updates, if a program cant access a key it needs it will fail.
Registering files gives you an error. When trying to register some system files you get an error that it failed. This is because the reg keys the file needs arent accessible. By fixing the permissions you can again register the files.
Wise Registry Cleaner scans the Windows registry and finds incorrect or obsolete information in the registry. This is one of many tools included in the Wise Care 365 free suite.
RegCleaner is an easy-to-use program. With RegCleaner, you can easily get rid of those old and obsolete registry entries created by software that you destroyed ages ago.
Tweaking.com - Registry Backup is a backup tool that uses the Windows Volume Shadow Copy Service to backup your system registry. From the author of Tweaking.Com - Windows Repair.