This prevents duplication of files on your hard disk or disks.Office 2013 and previous versions of Office really dig themselves deep into the Windows OS – as well as your browsers, apps, and other programs installed. If you use this utility to remove the Windows Installer configuration information for your program and you plan to reinstall the program, you should reinstall the program in the same folder where you originally installed it.
The Windows Installer CleanUp Utility does not: For example, you may have to remove a program's Windows Installer configuration information if you have installation problems when you try to add (or remove) a component of your program that was not included when you first installed your program.
You may want to remove the Windows Installer configuration information for your program if you experience installation (Setup) problems. With the Windows Installer CleanUp Utility, you can remove a program's Windows Installer configuration information. Microsoft has updated the Windows Installer CleanUp Utility.