Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
My laptop runs on Win 10 and Office 365. Also I was getting same error message.
I solved this error as doing following:
- Reach Run windows with combination "Windows+R"
- Enter in the run box "outlook.exe /safe" without quote.
- If you have problem with your Outlook, you will see a message box having your default outlook profile (Mine was Outlook). You may keep your existing profile or change it, depending on you. If you decided you change the profile, you must set up your account at beginning.
- Hit "return"
That's all done...