Authentication Errors After Office 365 Update

Ronak Shah 0 Reputation points
2025-06-18T10:21:27.8333333+00:00

After updates, some users experience authentication errors (e.g., error 1001) when updating Office 365 applications. These issues have persisted for extended periods, with support cases remaining open for months without resolution. 

Microsoft Authenticator
Microsoft Authenticator
A Microsoft app for iOS and Android devices that enables authentication with two-factor verification, phone sign-in, and code generation.
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