Checklists for software errors, setup, and tool workflows.

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Fix Windows Security Settings Not Loading or Resetting

Windows Security (formerly Windows Defender Security Center) may fail to load or reset properly d...

Fix PuTTY Network Error: Connection Refused on Ubuntu

When you try to connect to an Ubuntu machine using PuTTY and see "Network error: Connection refus...

Windows Defender Offline Scan Setup Guide

If your Windows PC is infected with malware that won't go away with a normal scan, a Windows Defe...

Fix Windows Activation Proxy Server Error

When you try to activate Windows and see an error about a proxy server, it usually means the acti...

Fix pip SSL Certificate Error in Python on Windows, macOS, Linux

You run pip install somepackage and get an SSL certificate error: certificate ...

Fix Microsoft Teams 'Permission Denied' When Sharing Screen
When you try to share your screen in Microsoft Teams and get a 'permission denied' error, it usua...