F5F Stay Refreshed Hardware Desktop Created a fresh system using an older M.2 slot with Windows, but it fails to start.

Created a fresh system using an older M.2 slot with Windows, but it fails to start.

Created a fresh system using an older M.2 slot with Windows, but it fails to start.

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blackice2500
Junior Member
3
07-16-2022, 10:59 PM
#1
Hello! I assembled a new system using some older components (M.2, GPU, PSU). At startup, the BIOS recognized my M.2 but it wasn’t listed as a boot option. Switching to CSM made it appear as an available boot device, yet selecting it prompted a warning: "reboot and select a proper boot device or Insert Boot Media in selected Boot device and press a key." I attempted a Windows 11 installer via USB to verify repairs, but it returned advanced settings indicating no OS found. Operating system: Windows 11 Home, 64 bit. Specifications include an Intel Core i7 13700K, MSI Pro Z790-P WiFi DDR5 RAM, Corsair Vengeance RGB DDR5 RAM 32GB (2x16GB) at 6000MHz, MSI MAG CoreLiquid 360R V2 M.2, SK Hynix Platinum P41 2TB PCIe NVMe Gen 4 M.2, 7,000MB/s power supply, AORUS P850W 80 Plus Gold 850W, and an AMD Radeon RX 7900 XT Founders Edition BIOS (version E7E06IMS.A90). Thanks for your time and have a great day!
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blackice2500
07-16-2022, 10:59 PM #1

Hello! I assembled a new system using some older components (M.2, GPU, PSU). At startup, the BIOS recognized my M.2 but it wasn’t listed as a boot option. Switching to CSM made it appear as an available boot device, yet selecting it prompted a warning: "reboot and select a proper boot device or Insert Boot Media in selected Boot device and press a key." I attempted a Windows 11 installer via USB to verify repairs, but it returned advanced settings indicating no OS found. Operating system: Windows 11 Home, 64 bit. Specifications include an Intel Core i7 13700K, MSI Pro Z790-P WiFi DDR5 RAM, Corsair Vengeance RGB DDR5 RAM 32GB (2x16GB) at 6000MHz, MSI MAG CoreLiquid 360R V2 M.2, SK Hynix Platinum P41 2TB PCIe NVMe Gen 4 M.2, 7,000MB/s power supply, AORUS P850W 80 Plus Gold 850W, and an AMD Radeon RX 7900 XT Founders Edition BIOS (version E7E06IMS.A90). Thanks for your time and have a great day!

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Sniicks06
Junior Member
14
07-29-2022, 02:27 PM
#2
I faced the same problem when switching to Windows 11. Consider using a bootable USB from Windows 10 with EFI enabled and proceed from there. Eventually, I had to swap out my motherboard since it was second-hand, which allowed me to activate UEFI and install Windows 11. It might have been related to secure boot and TPM settings.
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Sniicks06
07-29-2022, 02:27 PM #2

I faced the same problem when switching to Windows 11. Consider using a bootable USB from Windows 10 with EFI enabled and proceed from there. Eventually, I had to swap out my motherboard since it was second-hand, which allowed me to activate UEFI and install Windows 11. It might have been related to secure boot and TPM settings.

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juri1990
Senior Member
441
07-30-2022, 11:44 PM
#3
Simple fix: turn off CSM, turn on Secure Boot (and TPM) and start from a clean installation. Windows might need some adjustments when transferred between systems. Most issues can be fixed, but you’ll avoid complications if you install a brand new version. Good luck!
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juri1990
07-30-2022, 11:44 PM #3

Simple fix: turn off CSM, turn on Secure Boot (and TPM) and start from a clean installation. Windows might need some adjustments when transferred between systems. Most issues can be fixed, but you’ll avoid complications if you install a brand new version. Good luck!

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Maail99
Member
161
08-01-2022, 02:23 PM
#4
If it appears in CSM/legacy but not in UEFI, I’d think the disk is configured with MBR. You should update it to GPT so Win 11 can function properly. Follow the remaining instructions as well.
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Maail99
08-01-2022, 02:23 PM #4

If it appears in CSM/legacy but not in UEFI, I’d think the disk is configured with MBR. You should update it to GPT so Win 11 can function properly. Follow the remaining instructions as well.

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arc9819
Member
219
08-01-2022, 06:31 PM
#5
Hey there! I noticed another problem popped up, but everything is now fixed. I reset the BIOS to its default, then enabled CSM, turned off secure boot, saved the changes, and re-entered the BIOS just to confirm everything was correct. When I tried to boot again, the same message appeared: "reboot and select a proper boot device or Insert Boot Media in selected Boot device and press a key." I then reinstalled Windows from scratch, as suggested by @Sawa Takahashi, since I mainly use it for gaming and kept important files online. Thanks for your support!
A
arc9819
08-01-2022, 06:31 PM #5

Hey there! I noticed another problem popped up, but everything is now fixed. I reset the BIOS to its default, then enabled CSM, turned off secure boot, saved the changes, and re-entered the BIOS just to confirm everything was correct. When I tried to boot again, the same message appeared: "reboot and select a proper boot device or Insert Boot Media in selected Boot device and press a key." I then reinstalled Windows from scratch, as suggested by @Sawa Takahashi, since I mainly use it for gaming and kept important files online. Thanks for your support!