Windows Not Booting Fix Boot Option #1 on MSI B450M-A PRO MAX II (2026)

Is your Windows not booting after BIOS update or settings change on MSI B450M-A PRO MAX II motherboard?
In this video, I will show you how to fix this issue by selecting the correct Boot Option #1 (Windows Boot Manager – SSD) in MSI Click BIOS 5.

This problem usually occurs after:

BIOS Update

Legacy to UEFI conversion

Secure Boot / TPM changes

Fresh Windows installation

✅ What You’ll Learn:

✔ How to enter MSI BIOS
✔ Where to find Boot Option #1
✔ Difference between SSD, HDD, USB boot
✔ Select Windows Boot Manager (UEFI)
✔ Fix Windows not booting without reinstall

⚠️ Important:
Always select Windows Boot Manager (SSD) as Boot Option #1.
Wrong selection can cause boot loop or no boot issue.

🛠 Tested on MSI B450M-A PRO MAX II
📌 Method also works on other MSI B450 / B550 / X470 boards.

👍 Like | 🔔 Subscribe | 💬 Comment if it helped you!
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Видео Windows Not Booting Fix Boot Option #1 on MSI B450M-A PRO MAX II (2026) канала Rambo Tech