Checklists for software errors, setup, and tool workflows.

Fix Chrome Update Error 12: Missing Files

You try to update Google Chrome and see error 12, often with a message about missing files. This ...

How to Unlock an Outlook File Locked After Crash Recovery

After an unexpected crash, Outlook may refuse to open your PST or OST file, showing a message tha...

How to Set PowerShell as Default Terminal in Windows 11

If you frequently use PowerShell and want it to open by default instead of Command Prompt, Window...

How to Fix Windows Defender 404 Not Found Error

If you see a "404 Not Found" error when opening Windows Defender, it often means a required file ...

How to Fix Remote Desktop 502 Bad Gateway Errors Related to Firewall Settings

If you're seeing a 502 Bad Gateway error when trying to connect to a remote desk...

Fix Microsoft Teams Microphone Not Detected in Windows

Common Causes

• Microphone permissions disabled for Teams in Windows settings.