Bcedit !!top!! Here

Think of it as the BIOS for the Windows bootloader. It tells your PC: “Which OS to load, how much memory to use, whether to enable kernel debugging, and how long to wait for user input.”

bcdedit /set {default} bootlog Yes After a crash, check C:\Windows\ntbtlog.txt to see which driver failed. bcedit

If you can’t reach the desktop, boot from a USB drive, open CMD, and type: Think of it as the BIOS for the Windows bootloader

This creates a ntbtlog.txt file listing every driver that loads. how much memory to use

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.