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

PowerShell Performance Checklist for Slow Scripts

If your PowerShell script takes minutes instead of seconds, the problem is usually not the comput...

How to Fix Windows Security Connection Refused Error

You open Windows Security and see a "Connection refused" error when trying to update virus defini...

Fix Chrome ERR_TUNNEL_CONNECTION_FAILED on Windows 10

If you see ERR_TUNNEL_CONNECTION_FAILED in Chrome while browsing on Windows 10, ...

Fix Windows Defender Update Error 0x80070643

You try to update Windows Defender and see error 0x80070643. This usually means a Windows Update ...

Fix Outlook Blank Screen After Office Installation

Symptom and likely cause

After installing or updating Microsoft Office, Outlook may open ...

How to Configure Proxy in Windows Terminal

If you need Windows Terminal to use a proxy server—for example, behind a corporate firewall or a ...