Checklists for software errors, setup, and tool workflows.

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Fix Windows Defender Service Not Starting (Error 0x80070422)

You try to start Windows Defender but get error 0x80070422: “The service cannot be started, eithe...

How to Fix Outlook Setup Error 0x80040115

When setting up an Outlook profile, error 0x80040115 usually appears during the initial connectio...

Fixing Gradle Build SSL Handshake Failures

You run a Gradle build and see an error like javax.net.ssl.SSLHandshakeException or ...

Fix Command Prompt Crashing Due to Corrupted System Files

If Command Prompt opens briefly and then closes immediately, or crashes during use, corrupted sys...

Fix Remote Desktop 'Failed to Start Permission Denied' Error

You try to connect to a remote machine and see: Remote Desktop failed to start permission d...

How to Fix Windows Activation Version Mismatch Error
You may see a Windows activation error saying the product key doesn't match the installed edition...