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

How to Set Up SSL Certificate for Localhost on Windows 11

If you're developing a web application locally and need HTTPS, you can set up a self-signed SSL c...

Fix Windows Security Authentication Error 0x80070035

How to Fix Windows Defender File Locked Error 0x80070020

Error 0x80070020 often appears when Windows Defender (Microsoft Defender Antivirus) is scanning a...

Force Install Windows Update When File Is Locked

You’ve downloaded a Windows update but the installer says a file is locked. This often happens wh...

How to Fix PowerShell Login Loop Stuck at Sign In

You open PowerShell as an administrator, and instead of getting a prompt, you see a spinning circ...

How to Fix BitLocker Authentication Failed on Windows 11

You enter your BitLocker PIN or startup key, and Windows 11 shows 'Authentication failed.' This u...