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

Fix PowerShell DNS Resolution Failed Error

If you see DNS resolution failed when running a PowerShell command that tries to con...

How to Fix OpenVPN TLS Handshake Failed Error

If you see "TLS Error: TLS handshake failed" in your OpenVPN client log, the connection cannot es...

Fix Chrome Tunnel Connection Failed Error

When you see "Tunnel connection failed" in Chrome, it usually means the browser couldn't establis...

Install NuGet Provider Manually Without Internet

Fix Windows Defender Error 0x80070643 – Version Mismatch

You update Windows Defender and see error code 0x80070643. The update fails, and Defender may dis...

How to Fix Command Prompt Login Loop Using Safe Mode

If you're stuck in a login loop—where Windows logs you out immediately after signing in—you can o...