Fix Windows Defender Firewall Blocking Internet Connection
If your internet stops working after a Windows update or firewall configuration change, Windows D...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listHow to Fix Microsoft Teams Proxy Error on Windows 10
You open Microsoft Teams on Windows 10 and see an error like "Can't connect to proxy server" or "...
Fix Chrome Token Expired After Update: Step-by-Step Guide
After a Chrome update, you might see a 'token expired' error when trying to log into websites or ...
How to Fix Command Prompt Not Opening as Administrator
You right-click Command Prompt and select "Run as administrator," but nothing happens, or it open...
Fix Windows Update Error 0x80070643 Installation Failed
You see error 0x80070643 when trying to install a Windows update, and the setup fails partway thr...
Fix slui.exe High CPU Usage During Windows Activation
If you notice your CPU pegged at 100% while trying to activate Windows, slui.exe (Software Licens...
Topic paths
Quick titles
OneDrive Sync Conflict Troubleshooting ChecklistSet Windows Defender Threat Service to Automatic StartupFix Windows Update Error 0x8024401c Due to Network IssuesSpeed Up PC by Clearing Microsoft Store CacheResolve Windows Update Connection Refused Due to Proxypip SSL Error Troubleshooting GuideError 0x80070422: Windows Security Service Not Starting FixReduce Chrome High Memory Usage: Configuration Steps