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

Fix 'Windows Security Module Not Found' Antivirus Error

If you see a message like "Windows Security module not found" inside your third-party antivirus p...

Fix Windows Update Error 0x80070020: Port Already Allocated

When you see error 0x80070020 during a Windows Update, it usually means a program is already usin...

Fix Chrome Profile 404 Error on Windows 11

You open Chrome on Windows 11 and see a 404 error related to your profile. The browser may fail t...

Fix Windows Terminal High CPU Usage & Permission Denied Errors

You open Windows Terminal and notice the fan spinning up, Task Manager shows 30–50% CPU from Wind...

Fix Microsoft Store Connection Refused by Firewall

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

Fix BitLocker High Memory Usage After Windows Update

Why BitLocker Memory Usage Spikes After an Update

After a Windows update, some users noti...