Checklists for software errors, setup, and tool workflows.

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Setting PHP Composer Memory Limit via Environment Variable

When running Composer, you may encounter a fatal error like "Allowed memory size exhausted" or "O...

How to Fix a Corrupted Command Prompt Configuration File

When Command Prompt fails to start, shows unexpected behavior, or displays errors like "The confi...

Fix Command Prompt High CPU Usage Caused by Windows Update

You open Task Manager and see Command Prompt (cmd.exe) using a lot of CPU – sometimes 30% or more...

Fix Windows Security Proxy Error: Permission Denied

When Windows Security displays a "proxy error: permission denied" message, it usually means the s...

Fix MySQL Connection Refused on Localhost

You try to connect to MySQL on localhost and get ERROR 2003 (HY000): Can't connect to MySQL...

Setup Windows Terminal to Avoid Connection Refused Error
If you get a "Connection refused" error when using Windows Terminal to connect to a remote host, ...