If you want to downgrade from Office 2021 to Office 2019, or switch from Microsoft 365 to a standalone volume license, old registry keys can block the new installation. This tool ensures a blank slate.
Leftover registry keys can fool a new Office installer into thinking an older version is still present, halting the setup process. office uninstall 202 portable by ratiborus
Would you like a comparison table against Microsoft's official SetupProd_OffScrub.exe or a step-by-step usage guide? If you want to downgrade from Office 2021
Extract the contents to a folder on your Desktop or a USB drive. due to corrupted installers
Can remove Office versions that fail to uninstall via normal methods (e.g., due to corrupted installers, failed updates, or previous incomplete removals).