tasklist — by Microsoft Learn

Introduces Windows Terminal, a host for Command Prompt, PowerShell and WSL shells with tabs, panes, themes and customisable shortcuts and launch options.

A first chapter for new PowerShell users: where to find and how to launch it, running it as administrator only when needed, checking your version and what execution policy does.

Reference for chkdsk, which checks a volume's file system for logical and physical errors. Run without switches it only reports status, while /f and /r fix errors and look for bad sectors.