What is used to run commands for troubleshooting and accessing a bootable operating system?

The Windows Recovery Environment (WinRE) is a powerful tool that provides several recovery and troubleshooting options for Windows operating systems. It is designed to help users fix problems that can occur during booting, offer system restore options, run diagnostics, or perform repairs. When you're faced with issues that prevent the computer from booting normally, accessing WinRE can facilitate troubleshooting through a graphical interface or command line.

WinRE often provides features such as System Restore, Startup Repair, and Command Prompt, where users can run specific commands to diagnose and fix issues. The flexibility of WinRE also allows for accessing advanced options to either restore the operating system to a previous state or reinstall it if all else fails.

While other options like Command Prompt, Safe Mode, and BIOS Setup provide certain functionalities, they serve different purposes. Command Prompt, for example, is a command line interface that can be particularly useful within WinRE but is not independently used for troubleshooting boot issues in the same comprehensive way that WinRE offers. Safe Mode provides a minimal and clean environment for troubleshooting once the operating system is already partially functioning, and BIOS Setup is primarily for configuring hardware settings and boot order, not for running commands related to operating system troubleshooting. Thus, the Windows Recovery Environment is the most appropriate tool