1. Close all Office programs. 2. Download and run the Office Uninstall tool (aka "Microsoft Support and Recovery Assistant (SARA)". 3. At Uninstall Office Product, select to uninstall all Office products and click Next. Microsoft Rewards ; Free downloads & security Office Professional Office Professional Plus; You will be asked for your Product Key as part of the next steps *If you don't have a product key or an account. Some versions of Microsoft 365 such as Office Professional Plus 2021, Office Standard 2021, or a stand-alone app such as Word 2021 or Project 2021 don't have an associated Microsoft account, or work or school account. 9wkX1om.