How to Allow an App Through Windows Defender Firewall
If an app can't connect to the internet or network, Windows Defender Firewall may be blocking it....
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listHow to Activate a Virtual Environment in a Python Script
You might need to run a Python script that depends on packages installed in a virtual environment...
How to Fix Windows Security Error 'Access Denied' on Startup
If you see a Windows Security error saying 'Access Denied' right when your PC boots up, it usuall...
Fix Chrome Profile SSL Certificate Error Not Working
You're browsing in Chrome and suddenly get a persistent SSL certificate error—even on sites you k...
Fix Windows Update Module Not Found After Clean Install
After a clean install of Windows, some users encounter a "Windows Update module not found" or "Wi...
How to Fix Outlook Crash Error 0x80004005
If Outlook crashes or shows error 0x80004005 when launching or performing an act...
Topic paths
Quick titles
How to Fix BitLocker Version Mismatch Error 0x8031003eClear Windows Defender Protection History EasilyOneDrive Version Mismatch Troubleshooting GuideHow to Fix DNS Errors When Setting Up OutlookAzure AD PowerShell Cannot Connect: SolutionsWindows Terminal Performance Fix Setup GuideResolve Windows Update Permission Denied Rate LimitPowerShell Won't Open on Windows 10 – Fix Guide