How to Fix Windows Update Error 0x80070643
When Windows Update fails with error 0x80070643, the update usually stops at a certain percentage...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix PowerShell 504 Gateway Timeout Error
You run a PowerShell script that calls a web API, and after a while you get a 504 Gateway...
Fix OneDrive Sync Pending for Large Files
If you see "Sync pending" on large files in OneDrive, it usually means the file is too big or the...
Windows Update Stuck at Downloading: Practical Fixes
If your Windows update is stuck at the downloading stage, you're not alone. This often happens du...
Fix Windows Defender Antivirus Permission Denied Error
You try to start Windows Defender Antivirus and get a “permission denied” error. This typically h...
Chrome Settings Not Saving? Here's How to Fix It
You change a setting in Chrome—default search engine, startup page, download location—but the nex...
Topic paths
Quick titles
Troubleshoot Windows Security Timeout IssueTroubleshooting Windows Defender Path Not FoundFix Windows Security High CPU Usage: Step-by-StepWindows Update Settings Greyed Out – Causes and FixesFFmpeg Audio Out of Sync? Here's How to Fix ItResolve 'File Locked' in Windows Task SchedulerWindows 10: Port Already Allocated Error in Windows Defender FixOBS Virtual Camera Permission Denied macOS Fix