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

WinRAR Checksum Error Recovery Checklist

If you see a "Checksum error" in WinRAR, it usually means the archive is damaged or incomplete. T...

Fix Chrome SSL Certificate Error: Not Secure Site

When you visit a website and Chrome shows 'Not Secure' in the address bar, it means the site's SS...

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

If you're dual-booting Windows and Ubuntu, or replacing Windows...

Chrome Remote Desktop Remote Debugging Not Working: Fixes

You've set up Chrome Remote Desktop to debug a remote site or app, but the debugging tools won't ...

BitLocker Blank Screen on External Drive: Fix and Recovery Steps

You connect an external drive that was encrypted with BitLocker, and instead of the usual unlock ...

Fix Chrome 'ERR_CONNECTION_REFUSED' Due to Proxy Settings

You're trying to load a website, but Chrome shows ERR_CONNECTION_REFUSED. The pa...