When installing Office on a computer running Windows 10 S you may get one of the following error codes when trying to install a build older than 1902.
- 31-BOOTSTRAPPER_PREREQ-office_version
- 29-BOOTSTRAPPER_PREREQ-office_version
To fix this, switch out of S mode or try installing a newer build of Office.
Switch out of S mode
Follow the instructions in Switching out of S mode in Windows and then try installing Office again. This will allow you to install an older build of Office.
Install a newer build of Office
See Download and install or reinstall Microsoft 365 or Office 2024 on a PC or Mac. Following these steps should help you install the latest build.
Note
For admins only To see which update channels Version 1902 or later is available in, see Update history for Office.