Fix Error 0x8007007E in Windows & Office Updates
Encountering error 0x8007007E (ERROR_MOD_NOT_FOUND) during Windows or Microsoft 365 updates is a common issue that can stop updates or break Outlook. This error means a required system
Tag
365
Microsoft 365 administration and troubleshooting
Fix AADSTS50027 InvalidJwtToken Error: Step-by-Step Guide
You get AADSTS50027 when Azure AD rejects a JWT token because it's malformed, has the wrong audience, expired, or fails signature validation. This typically happens during app authentication
Fix CAA2000B Error in Outlook & Microsoft 365 Sign-In
When users sign into Outlook or other Microsoft 365 apps, they may see "Something went wrong. [4usqa]" followed by "We couldn't sign you in. If
Fix Intune Enrollment Error 80180003 "User Not Authorized"
Fix Intune Enrollment Error 80180003 "User Not Authorized"
Fix Outlook AADSTS50053 Account Locked Out
Outlook or Teams shows error AADSTS50053 with message "Your account is locked" or "Sign-in blocked." Azure AD Smart Lockout has temporarily locked the account after too
Fix 'Device Already Enrolled' Error 8018000a in Intune
Windows shows "Something went wrong. The device is already enrolled" with error code 8018000a when you try to join a device to Intune. This is typically caused by
Fix AADSTS50144: InvalidPasswordExpiredOnPremPassword
When a user gets AADSTS50144: InvalidPasswordExpiredOnPremPassword in a hybrid identity setup, it means their on-premises Active Directory password has expired. Azure Entra ID (formerly Azure AD) cannot authenticate with the
Fix Microsoft Teams Error CAA20003 Sign-In Loop
Microsoft Teams shows error CAA20003 and you're stuck in a sign-in loop. You enter your credentials, Teams thinks about it, then asks for credentials again. Or it shows
Fix AADSTS50064 CredentialAuthenticationError in Entra ID
When signing in to a Microsoft 365 application or Azure service, error AADSTS50064 with the message "CredentialAuthenticationError - The credential used to authenticate with the authentication scheme 'X509Certificate&
Fix AttributeValueMustBeUnique Sync Error in Entra ID
Microsoft Entra Connect sync fails with AttributeValueMustBeUnique error when two or more objects in your on-premises Active Directory share a unique attribute like userPrincipalName or proxyAddresses. The sync error log
Fix ERR_INVALID_TOKEN or Invalid Product Key Error
Office product key redemption fails with error codes ERR_INVALID_TOKEN or ERR_MISSING_PARTNUMBER when attempting to activate at Office.com/setup. The activation page displays "Sorry, we
Fix Outlook AADSTS50076 MFA Required Error
Outlook or Teams shows error AADSTS50076 with message "Due to a configuration change made by your administrator, you must use multi-factor authentication." An MFA policy (Security Defaults, per-user