How to remove Dr Cleaner

Try a Force quit using the  menu/Force Quit. If that doesn't work, go to Applications/Utilities/Activity Monitor and quit it there.

After putting the application in the Trash, open the Finder, go to the Menu Bar, open the “Go” menu, select the entry:|Go to Folder... and then enter the path of the Application Support folder:~/Library. Search for any files or folders with the program’s name or developer’s name in the ~/Library/Preferences/, ~/Library/Application Support/ and ~/Library/Caches/ folders. Right click on those items and click Move to Trash to delete them.

Meanwhile, search for the following locations to delete associated items:

• /Library/Preferences/
• /Library/Application Support/
• /Library/Caches/

Besides, there may be some kernel extensions or hidden files that are not obvious to find. In that case, you can do a Google search about the components for Dr. Cleaner 2.0.0. Usually kernel extensions are located in in /System/Library/Extensions and end with the extension .kext, while hidden files are mostly located in your home folder. You can use Terminal (inside Applications/Utilities) to list the contents of the directory in question and delete the offending item.

Credit this article for the above. DO NOT DOWNLOAD ANYTHING FROM THAT ARTICLE!!!!!!!!!!!!!!

Uninstall Dr. Cleaner 2.0.0 from your Mac

Go to applications. Drag Dr Cleaner to the trash. Done