Fix Remote Desktop Connection Refused Due to Firewall
You try to connect to a remote Windows PC via Remote Desktop, but get an error like “Remote Deskt...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Windows Activation High CPU Usage in Safe Mode
If you've booted into Safe Mode and noticed the CPU pegged at 100% due to a process related to Wi...
Configuring Microsoft Store for Offline Access
If you need to use the Microsoft Store on a device that is frequently offline, or you want to man...
Fix Windows Defender Security Center Not Opening
When you click the Windows Defender Security Center icon or try to open it from Settings, nothing...
Windows Activation Service Unavailable on New Computer
You just set up a new computer, but when you try to activate Windows, you see an error that the a...
Fix Windows Security Authentication Error 0x80070035
When you try to access a shared folder or printer on another computer, you might see an error:
Topic paths
Quick titles
Windows Search Not Working? Run the TroubleshooterFix 'Git Remote Repository Not Found' ErrorHow to Fix Microsoft Store SSL Certificate Expired ErrorHow to Resolve BitLocker 502 Bad GatewayHow to Break a Windows Login Loop Caused by Registry EditTroubleshoot Microsoft Store Sync After Windows RestoreHow to Fix Access Denied Editing Windows Defender RegistryHow to Resolve Outlook Error 0x80040115