Checklists for software errors, setup, and tool workflows.

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2. Isolate

3. Apply

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Fix Microsoft Store 502 Bad Gateway Due to Network Settings

You open the Microsoft Store and see a '502 Bad Gateway' error. This often means your device cann...

How to Fix Microsoft Store Failed to Start Error

When you click the Microsoft Store icon and nothing happens, or you see a generic “failed to star...

Checklist to Resolve Windows Search Authentication Failed

You open Windows Search, type a query, and get an error like “Windows Search authentication faile...

Fix Windows Update Error 0x80070002 (Pending Install Not Working)

If you see error 0x80070002 when trying to install Windows updates that are stuck on "pending ins...

Fix Task Scheduler Cache Error 0x80070057

When you try to create or modify a scheduled task in Windows, you may encounter error 0x8...

Fix High CPU Usage by MsMpEng.exe (Windows Defender)
If your system feels sluggish and Task Manager shows MsMpEng.exe using 30–100% CPU, Windows Defen...