Mac Cleanup Pro is installed by the users, whether that is knowingly or not. How did Mac Cleanup Pro get on my computer? However, if you try to fix these issues, Mac Cleanup Pro will state that you need to buy the full version before being able to do so. When scanning your computer, Mac Cleanup Pro will search for cached files, invalid startup entries, and temporary files. Mac Cleanup Pro is a potentially unwanted program that describes itself as a system optimization program that can help your computer run better. Image: Mac Cleanup Pro What is Mac Cleanup Pro Mac Cleanup Pro is a potentially unwanted program that uses intentional false positives to convince you to purchase the premium version of this program.