Checklists for software errors, setup, and tool workflows.

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Fix Windows Search Returning 404 Not Found Error

When you search for a file or app in Windows and click a result, you may see a ‘404 Not Found’ er...

Fix Windows Activation Authentication Failed Error: License Not Genuine

When you see a message like “Windows activation authentication failed” or “license not genuine,” ...

Fix Microsoft Teams Migration Not Syncing Contacts

After a Microsoft Teams migration, you may notice that contacts aren't syncing from Exchange or O...

Fix Windows Search 502 Bad Gateway Errors Caused by Firewall Blocks

You open Windows Search, type a query, and get a "502 Bad Gateway" error. This often means a fire...

How to Fix PowerShell Unable to Connect to Proxy Server

When PowerShell fails to connect to a proxy server, you might see errors like Unable to con...

Windows Activation SSL Certificate Error: Permanent Fix Guide
You try to activate Windows, but see an error about an SSL certificate or a secure connection fai...