Microsoft no longer officially supports Windows Server 2012 R2 (extended support ended on October 10, 2023 ). As a result, the standard OneDrive sync app for Windows 10/11 is not compatible with Windows Server 2012 R2 out of the box.
If the app refuses to launch, right-click the shortcut, go to Properties > Compatibility , and set it to Windows 7 . Important Limitations to Watch Out For onedrive download windows server 2012 r2