
You will need appropriate serial numbers to activate, obtained from Autodesk. As usual, these will typically be trial links.To resolve the licensing issue use the following strategies: Reset Autodesk license information cache ( – version) as follows: Remove all files under C:\Users\\AppData\Roaming\Autodesk\ADUT. When launching/randomly in Revit, it states it is in viewer mode even though a license should be available. If Revit remains in viewer mode when re-launched: If working in the version of Revit, check if the following article applies: Revit is stuck in Viewer ModeEstimated Reading Time: 50 secs.


Make sure the latest updates have been installed. Try starting a new session of Revit (leaving the old one open), and check if the new session can save.
