Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

View list

How to Fix 'Windows Activation Path Not Found Product Key' Error

When you try to activate Windows or reinstall it using a product key, you might see an error like...

Fix Windows Security Error 0x80073b01

You try to install or update an app from the Microsoft Store, and Windows Security throws error 0...

Fix Windows Terminal Not Working with VPN

If Windows Terminal stops working when your VPN is connected—freezing, failing to launch, or show...

Fix Windows Activation Proxy Server Not Responding

When you try to activate Windows and see “proxy server not responding,” it usually means Windows ...

Fix Gradle Build Failed Java Heap Space Error

You're running a Gradle build and it fails with java.lang.OutOfMemoryError: Java heap space...

How to Start the Windows Update Service When It Stops
If Windows Update isn't working, the first thing to check is whether the Windows Update service i...