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

Fix PowerShell Blank Screen After Resizing Window

If you resize a PowerShell window and the screen goes blank, you're not alone. This usually happe...

Fix Chrome ERR_TUNNEL_CONNECTION_FAILED When Using VPN

Windows 10 Activation Stuck at 0%: Practical Fixes

You try to activate Windows 10, but the progress bar stays at 0% for minutes or hours. This can h...

How to Fix BitLocker Blank Screen in Safe Mode

If you're stuck at a blank screen after booting into Safe Mode with BitLocker enabled, you're not...

Fix Windows Certificate Error 0x800b0109

When you see error code 0x800b0109 in Windows, it means the operating system cannot verify a digi...