Checklists for software errors, setup, and tool workflows.

Fix Windows Defender Error 0x80073b01 (Crash on Startup)

If Windows Defender crashes on startup with error code 0x80073b01, the antivirus service may be f...

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...

Fix Microsoft Teams Microphone Not Detected in Windows

Common Causes

• Microphone permissions disabled for Teams in Windows settings.

Outlook Version Mismatch Checklist: Fix Sync & Profile Errors

When Outlook shows errors like “Cannot start Microsoft Outlook” or sync failures after an Office ...

How to Fix Microsoft Edge Not Launching

If Microsoft Edge fails to launch—clicking the icon does nothing, or the window appears briefly a...

Fix PowerShell Service Unavailable Error on Windows

You're running a PowerShell command and get a red error: "Service unavailable". ...