Changing from Microsoft 365 or Office 365 to Office 2021 can sometimes lead to activation or licensing problems. In particular, you may encounter messages about an invalid product key, an unlicensed product, connection problems, or activation limits. Fortunately, these issues can often be resolved by checking your Office license, installation, internet connection, and Microsoft account. … Continue reading “Changing Office 365 to Office 2021: How to Fix Activation Issues”
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