The development team tells us:
What it fixes:
- Corrupted registry keys on 64-bit operating systems
- Corrupted registry keys that control the update data
- Problems that prevent new programs from being installed
- Problems that prevent existing programs from being completely uninstalled or updated
Problems that block you from uninstalling a program through Add or Remove Programs (or Programs and Features) in Control Panel
- Windows 7
- Windows 8
- Windows 8.1
- Windows 10
Just install it then run it. You need to select the software with problems and solve them.
You can download from the Microsoft support official webpage.