Fix Windows Security Service Not Running for Antivirus
If Windows Security shows 'Service not running' or your antivirus isn't working, the underlying s...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix Task Scheduler Error 0x80070020: Port Already in Use
When you see error 0x80070020 in Task Scheduler with the message "port already in use," it usuall...
Fix Task Scheduler Version Mismatch Error: Step-by-Step Guide
If you see a "task scheduler version mismatch" error when trying to import or run a scheduled tas...
How to Fix Chrome DNS Errors in Safe Mode
If Chrome shows a DNS error like "DNS_PROBE_FINISHED_NXDOMAIN" or "ERR_NAME_NOT_RESOLVED" on ever...
How to Fix Task Scheduler Token Expired Without Password
When a scheduled task runs with the setting 'Run whether user is logged on or not', it stores a p...
How to Check DNS Configuration for Windows Activation
If Windows activation fails with an error like “0x8007232B” or “DNS name does not exist,” the pro...
Issue queue
SitemapJupyter Kernel Won't Start After Update: Troubleshooting
Fix Chrome Opening on Startup with Registry
How to Restore Windows Terminal After Update
Teams Token Expired Not Working: Quick Fixes
Windows Security Authentication Failed Error Guide
Chrome Error 0xc0000022: Troubleshooting Guide
Remove Windows Activation Watermark Without a Product Key
Generate Windows Security Log: Enable Auditing Guide
Fix 'slmgr not recognized' Error After Update
How to Fix Windows Update Rate Limit Error
Chrome Profile Locked Error: Quick Fix Guide
How to Fix Windows Update Hanging on Checking for Updates
Fix Chrome Opening on Startup with Registry
How to Restore Windows Terminal After Update
Teams Token Expired Not Working: Quick Fixes
Windows Security Authentication Failed Error Guide
Chrome Error 0xc0000022: Troubleshooting Guide
Remove Windows Activation Watermark Without a Product Key
Generate Windows Security Log: Enable Auditing Guide
Fix 'slmgr not recognized' Error After Update
How to Fix Windows Update Rate Limit Error
Chrome Profile Locked Error: Quick Fix Guide
How to Fix Windows Update Hanging on Checking for Updates