Fix Windows Activation High CPU Usage with Clean Boot
If your system's CPU usage spikes after a Windows activation check, a clean boot can help identif...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Windows Defender Missing After Update
After a Windows update, some users find that Windows Defender is missing from the system tray, Se...
Fix Windows Activation slmgr Permission Denied Error
When you try to activate Windows using the Software License Manager (slmgr) command-line tool, yo...
Fix VirtualBox Kernel Driver Not Installed Error
When you try to start a virtual machine in VirtualBox and see "Kernel driver not installed (rc=-1...
How to Fix Windows Activation Rate Limit Errors
You try to activate Windows but get an error saying you've exceeded the activation limit or a gen...
Fix Teams Permission Denied Errors on Mac
If you see a 'permission denied' message when using Microsoft Teams on a Mac, the app usually can...
Topic paths
Quick titles
Resolve PowerShell 502 Bad Gateway Due to SSL Certificate IssuesMicrosoft Teams 404 Error: What to DoTroubleshoot Windows Search Not Working on WakeHow to Delete Chrome Profile Cache for 504 ErrorsWindows Activation Blocked by Security SoftwareTroubleshoot Windows Defender Real-Time Protection StuckFix Windows Update Stuck on 'Checking for Updates' Due to DNSHow to Fix Infinite Repair Loop After Windows Update