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

Fix PowerShell Proxy Authentication Failed Errors

Fix Microsoft Store High Memory Usage After Update

After a recent Windows update, you may notice the Microsoft Store process (RuntimeBroker.exe or W...

Check if a Port Is Already Allocated Using Command Prompt

When you start a service or application and get an error like "Address already in use" or "Port i...

BitLocker Recovery Key Not Accepted: Practical Fixes

You enter the 48-digit BitLocker recovery key, but Windows says it's not accepted. This can happe...

Fix Chrome Port Already Allocated Error (ERR_UNSAFE_PORT)

When Chrome displays an error like ERR_UNSAFE_PORT or a message that a port is alrea...

Reset Windows Defender Settings via Command Line

If Windows Defender is misbehaving—showing false positives, missing updates, or refusing to run—r...