_____ is used to run commands for troubleshooting and accessing a bootable operating system.

• A. BIOS
• B. Windows Recovery Environment
• C. Command Prompt
• D. Task Manager

Answer: (B)

When Windows can’t start normally, you use Windows Recovery Environment to troubleshoot and repair the system and to access a bootable OS. WinRE is a lightweight, separate environment that boots from a recovery partition or installation media, so you can work even when the main Windows isn’t loading. It provides built-in tools for repair, including a Command Prompt you can use to run commands such as bootrec, sfc, chkdsk, and other utilities to fix boot records, system files, or disk issues. This setup is specifically designed to help you repair startup problems and regain access to the operating system.

BIOS is firmware that initializes hardware and sets boot order before any OS loads, not a place to run troubleshooting commands inside the OS. The Command Prompt is a tool you can use within WinRE (or Windows). Task Manager is a Windows utility for managing processes and performance, not a recovery environment for boot-related troubleshooting.