Microsoft had launched Beta version and then RC version of its Office suit a long time ago,Beta and RC are free therefore many people downloaded and installed it.
Now RTM version is out and if you want to experience full office suite then you need to purchase it.
Some of you may not want to purchase it due to any reason but if you had installed Beta Or RC version then it will soon end so you will required to remove it.
Wait how you will remove it??
If you chose simple uninstallation then let me tell you it will left many folders containing files and some registry entries too which may slow down your computer.
Microsoft Office 2010 CleanUp Utility will perform a clean uninstallation of MS Office for you.It remove all folders and registry entries.
All you are required is just launch it and go with the instructions.
You may use following to download it :-