This will perform a full scan of your system, which can take some time. Provide admin permissions, then enter the following: sfc /scannow To run SFC, type cmd into the Start Menu to show the Command Prompt tool, then right-click it and choose Run as administrator, since you need to open an elevated prompt to run this command. Instead, you can use an SFC scan, which checks for invalid system files and tries to repair them when possible. Windows used to include a tool called ScanReg that checked for registry issues, but this isn't available in modern versions. You might not need to do a full reset, so try these tools first. And while the reset and System Restore options above are your best options for serious problems, Windows also includes some utilities to help scan for and fix corrupted system files. By fixing the permissions, you can again register the files.Presumably, you're looking to reset the Windows Registry to default because of issues on your system.

This is because the reg keys the file needs aren't accessible. When trying to register some system files, you get an error that it failed. If a program can't access a key, it needs it will fail. If the updates don't have permission to specific keys, the updates will fail. You try to install some Windows updates, but they fail.

This will not remove any current permissions, it only adds to them.

Reset Registry Permissions will change the owner of the reg keys to Administrators and give admins & system full control. īecause of possible registry changes in modern operating systems, the use of these legacy apps is at your own risk. Note: This repair is no longer updated or supported, but is updated as part of Windows Repair.

Reset registry to default windows 10