Remove Specific Office License Key
When Office products show "Unlicensed" or activate with the wrong account/key after migration, you might need to remove a specific, problematic license key directly from the command
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Fix Enrollment Blocked by Device Enrollment Restrictions 80180014
Intune enrollment fails with "Enrollment blocked by Device Enrollment Restrictions" and error code 80180014, or messages like "DeviceCapReached" or "Company Portal Temporarily Unavailable." This
Fix CVE-2025-23120: Veeam Backup Server RCE Vulnerability
A remote code execution (RCE) vulnerability, CVE-2025-23120, exists in Veeam Backup & Replication. Authenticated domain users can execute code on domain-joined backup servers via insecure .NET deserialization. Exploitation is silent
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
Find Account Lockout Source in Active Directory
A user's account keeps locking out, but you can't figure out where. This PowerShell command queries domain controller security logs to identify the source of the
Delete "Undeletable" Files (Path Too Long / Invalid Name)
Sometimes Windows Explorer refuses to delete files or folders due to "path too long," invalid characters, or other obscure errors. The ROBOCOPY command can often force-delete these stubborn
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
Force Blue Screen (For Testing System Response)
Sometimes you need to test how a system reacts to a kernel panic or a bug check, perhaps to verify monitoring systems or crash dump collection. This registry tweak enables
Fix OneDrive Error 0x8004de40: Step-by-Step Guide
OneDrive sign-in error 0x8004de40 is a connectivity issue between your device and Microsoft's servers. The Fix Follow these steps in order. Test OneDrive sign-in after each step before