Checklists for software errors, setup, and tool workflows.

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Fix Microsoft Store 404 Not Found After Update

After a Windows update, you might open Microsoft Store and see a 404 Not Found error when trying ...

Fix Windows Security Won't Turn On Real-Time Protection

You click the toggle to enable real-time protection in Windows Security, but it switches back off...

How to Bypass Proxy in PowerShell Commands

When running PowerShell commands that make web requests, a configured proxy can sometimes block o...

Fix Windows Defender Service Not Starting with Permission Denied

If you see 'Windows Defender service not starting – permission denied' when trying to enable Micr...

How to Fix Command Prompt Proxy Errors: A Practical Guide

When you try to run a command in Command Prompt and see an error like ERROR: Cannot establi...

Fix VirtualBox Kernel Driver Not Installed Error 0x80004005
You try to start a virtual machine in VirtualBox and get the error: Kernel driver not ins...