We've cleared your saved Office 365 sign-in credentials. Open one of the Office applications, such as Word or Excel, and ...

We've cleared your saved Office 365 sign-in credentials. Open one of the Office applications, such as Word or Excel, and sign in. This should automatically activate Office for you. If it doesn't, go to File > Account > Activate Product. Note: You may need to restart the application a couple of times before the activation takes effect.