Osa.dll — Disabled

To determine if a conflict is caused by an add-in, try running Office in Safe Mode. Press Windows Key + R .

The most common solution is to repair the Microsoft Office installation, which will replace missing or corrupted DLL files, including osa.dll . Open the and select Programs and Features . osa.dll disabled

[SOLVED] High CPU usage caused by osa.dll (Office Startup Assistant) To determine if a conflict is caused by