Go to the “/Library/Automator” folder from your main hard drive.

Remove any files in the folder beginning with “” or “”.

Type in “/var/db/receipts/” and press Enter.Whilst still browsing a folder, press cmd + Shift + G.Go to the “/Library/Receipts” folder from your main hard drive and delete the any files beginning with “Office2011_”.Go to the “/Library/Internet Plug-Ins” folder from your main hard drive and delete the “ugin” and “SharePointWebKitPlugin.webplugin” files.Go to the “/Library/PrivilegedHelperTools” folder from your main hard drive and delete the “.helper” file.Go to the “/Library/LaunchDaemons” folder from your main hard drive and delete the “.ist” file.Go to the “/Library/Preferences” folder and remove the “.plist” file.Go to the “/Library/Application Support” folder from your main hard drive and remove the “Microsoft” folder.Go to your home folder, open the Library folder and then open the Preferences folder.Go to your home folder, then go to the Documents folder. Remove the “Microsoft User Data” and “RDC Connections” folders.Remove the “Microsoft Communicator” and “Microsoft Messenger” applications.

Remove the “Microsoft Office 2011″ folder.

Just in case the original page becomes unavailable, you can download the scripts from here. The whole process took an hour or so on this dreadful machine, but you don't have to sit and watch - after answering a single question at the very beginning, the rest of the process runs fully unattended. I had to run it from an elevated command prompt and it did the job beautifully. After a bit more Google-fu I came across this page, where the author was sharing a VBScript received from Microsoft support rep that manually removes Office 2010 (2007 version is also available). There seem to have been some tools available on Microsoft support sites, but they were all now linking to non existing pages. I started looking into ways to force-remove MS Office 2010. Because of the slowness of the PC in question, every attempt to uninstall and then roll back the changes was taking at least 30 minutes so it wasn't a practical solution. Every time it would go a bit further and fail on different registry keys. Initially, I tried to resolve the issue by fixing permissions for the offending registry keys and re-running the uninstaller. Normal uninstall fails with error 1402 (in French) about permission issues on some registry entries. Office 2010 is interfering with some Outlook 365 plugins that user requires so needs to be removed.

A very old and slow HP Windows 7 laptop with MS Office 365 and MS Office 2010 installed.

Office uninstaller download