Fix 'Windows Defender Firewall Has Blocked' Error
You see a notification that Windows Defender Firewall has blocked an app or feature. This usually...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFixing PowerShell Invoke-Command Timeout Errors
When you run Invoke-Command against a remote computer and get a timeout error, it us...
Fix Task Scheduler Blank Screen After Windows Update
After a recent Windows update, you open Task Scheduler and see nothing but a blank white window. ...
How to Fix Windows Store Download Stuck Issues
You start downloading an app from the Windows Store, but the progress bar stays at 0% or a small ...
How to Fix Windows Update Error 0x80070005
Windows Update error 0x80070005 usually means the update process lacks necessary permissions. Thi...
Windows Activation Key Not Recognized on Ubuntu Dual Boot
If you installed Ubuntu alongside Windows and now your Windows activation key is not recognized, ...
Topic paths
Quick titles
Task Scheduler Automatic Start Not WorkingDiagnose and Resolve PowerShell Startup ErrorsResolve Antivirus-Induced High Memory in Microsoft StoreJupyter Notebook Token Not Working After Update: FixesWindows Update Configuration Failed Rollback FixCMD Proxy Troubleshooting GuideWindows Update Error 0x80070002 High CPU FixOutlook 502 Error After Update: Quick Fixes