Fix Windows Update Authentication Failed Due to Group Policy
You try to run Windows Update and get an error like "Authentication failed" or "0x80070005" – and...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listHow to Run PowerShell at Startup Without User Login
If you need a PowerShell script to run every time Windows starts, even before a user logs in, you...
Fix Slow PowerShell Profile Loading
If your PowerShell console takes several seconds to become usable, a slow profile script is usual...
Fix 'wuauclt: command not found' Error
If you see wuauclt: command not found when trying to run Windows Update from the com...
How to Fix DNS Probe Finished NXDOMAIN Error in Chrome
When you see "DNS probe finished NXDOMAIN" in Chrome, it means the browser can't find the website...
How to Fix Windows Defender Connection Refused Error
If you see a 'connection refused' message when opening Windows Defender or updating virus definit...
Topic paths
Quick titles
PowerShell Invoke-Command Timeout TroubleshootingIT Admin Checklist: Installing Windows Updates Without InternetTeams Stuck on Loading Screen After Update? Try These FixesHow to Back Up and Restore Microsoft Store Apps in Windows 11Fix Microsoft Edge Sync Paused ErrorHow to Resolve Windows Activation 504 ErrorWindows Sync Permission Denied: How to FixPowerShell Logging Not Working? Common Fixes