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

How to Reactivate an Expired Windows License

If you see a "Windows license expired" or "Windows activation required" watermark, your copy of W...

How to Fix BitLocker SSL Certificate Error

Symptoms

When you try to unlock a BitLocker-protected drive or enable BitLocker, you may ...

Windows Security Not Scanning for Viruses: How to Fix

If Windows Security (formerly Windows Defender) is not scanning for viruses, you may see an error...

Fix Windows Security High CPU Usage: Step-by-Step

If you notice your PC fan spinning loudly or sluggish performance, Windows Security might be usin...

Fix Microsoft Store Connection Refused by Firewall

If you see "connection refused" when opening Microsoft Store, your firewall or network settings a...

Fix Antivirus Causing High CPU Usage in Command Prompt

If you notice high CPU usage in Task Manager under Command Prompt, your antivirus software may be...