Bcedit

bcdedit /enum This lists every boot entry on your machine. You’ll see {current} (your running OS), {default} (the one that boots automatically), and {memdiag} (Windows Memory Diagnostic). Look for the description field to identify your OS.

BCEDIT (Boot Configuration Data Editor) is a command-line tool that manages the Boot Configuration Data (BCD) store. In older versions of Windows (XP and earlier), this was the boot.ini file. Today, the BCD store is a more robust, firmware-independent database that controls how Windows boots. bcedit

Let’s break down what BCEDIT does, why you shouldn’t fear it, and the five commands that actually matter. bcdedit /enum This lists every boot entry on your machine

bcdedit /timeout 15 Now you have 15 seconds to choose your OS. BCEDIT (Boot Configuration Data Editor) is a command-line

bcdedit /import C:\BCD_Backup If the command line makes you nervous, Microsoft offers a GUI tool called Visual BCD Editor (from the Windows SDK). But honestly, mastering these 5 commands puts you in the top 10% of Windows troubleshooters.

Open (or boot into Windows Recovery Environment). Here is your cheat sheet: