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

Windows Restore Point Missing After Update – How to Fix

You updated Windows, and now your System Restore points are gone. This is a known issue after maj...

Fix Windows Terminal Startup Folder Not Working

You set a custom startup folder in Windows Terminal, but it keeps opening to the default location...

Fix Chrome ERR_TUNNEL_CONNECTION_FAILED When Using VPN

Fix Windows Update 404 Not Found Error: Practical Steps

When running Windows Update, you might see an error message like "404 Not Found" or code 0x802440...

BitLocker Recovery Key Not Working: Practical Fixes

You're staring at the BitLocker recovery screen, you type in the 48-digit key, and it says it's w...

Fix Chrome Profile DNS Error on Windows 10

You might see an error like "DNS_PROBE_FINISHED_NXDOMAIN" or "ERR_NAME_N...