Knowledge base for software setup, errors, and daily tool work.

Fix Windows Security Service Stopped Working in Windows 10

If you see a notification that the Windows Security service has stopped working, your antivirus o...

Fix 'Windows Update Configuration Failed Reverting Changes'

You see the message 'Windows Update configuration failed. Reverting changes.' after a restart. Th...

How to Fix DNS Errors by Setting Up Windows Defender

If you're seeing DNS errors while browsing—like "DNS server not responding" or "DNS probe finishe...

Windows Update Option Missing After System Update: How to Restore It

After a recent system update, you might open Settings and find the Windows Update page missing or...

Fix Windows Activation Rate Limit Exceeded After Multiple Attempts

If you see a message saying the activation rate limit has been exceeded after trying to activate ...

Fix Outlook Email Sync Failed on Ubuntu

Outlook email sync fails on Ubuntu: what to check

If Outlook (via web browser, Evolution,...