Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

View list

Fix Windows Security Connection Refused Due to Firewall Settings

When Windows Security shows a 'connection refused' error, it often means the Windows Defender Fir...

Fix Microsoft Teams 502 Bad Gateway Due to Network Config

You open Microsoft Teams and see a 502 Bad Gateway error. This usually means you...

How to Fix Outlook Setup Error 0x80040115

When setting up an Outlook profile, error 0x80040115 usually appears during the initial connectio...

Fix Windows Activation 502 Bad Gateway DNS Error

If you see a 502 Bad Gateway error during Windows activation, it usually means y...

BitLocker 502 Bad Gateway Permission Denied: Fixes and Checks

You try to unlock a BitLocker drive or access recovery options and get a 502 Bad Gateway<...

How to Set Command Prompt as Default Terminal in Windows 11
Windows 11 ships with Windows Terminal as the default terminal app. If you prefer the classic Com...