Office Ltsc Professional Plus 2021 Preview Has Expired - How To Fix Microsoft

For users with a valid LTSC 2021 volume license but who accidentally installed the preview.

: Always reboot your computer after uninstallation to finalize the process. Step 2: Install the Final Version

Enter the KMS client key: cscript ospp.vbs /inpkey: Activate: cscript ospp.vbs /act 3. Clear Expired License Files

, preventing you from creating or editing documents. Because the "Preview" is a temporary pre-release version, it cannot be "fixed" simply by entering a standard consumer key;