Question Changed MB/CPU now ssd wont boot windows

[Zubati]

Hello, I changed my motherboard and cpu, got a asrock 550pro and a ryzen 7 5800. I have my old hard drive samsung 980 pro installed but its giving me the:

"Reboot and select proper boot device or insert boot media in selected boot device".

I checked the bios and the samsung is in boot position #1 and I also tried putting the samsung into my sons computer and tried loading it up got the same result. I have tried disabling CSM but that didnt do anything. How do I get this hard drive to load windows again? At one point I put the drive in my other sons computer and it did load normally about 3 weeks ago.

 

[SkyNetRising]

Normally when you change motherboard, you're also required to reinstall windows.

If you try to avoid this, you get several possible issues:

boot mode compatibility - system doesn't boot,​

driver incompatibilities - bsods, crashes, bad performance,​

windows activation issues - can not activate windows.​

If you insist on trying to skip reinstall, then make sure:

secure boot is disabled,​

fast boot is disabled,​

NVME raid is disabled,​

boot mode (UEFI/legacy/CSM) matches your old system,​

sata controller mode matches your old system,​

OS drive is being properly detected in BIOS,​

boot priority is set properly.​

If windows in old pc was installed in UEFI mode, then set first boot device to windows Boot Manager.

If you can't do that, then reinstall.

 

[Zubati]

Normally when you change motherboard, you're also required to reinstall windows.

If you try to avoid this, you get several possible issues:

boot mode compatibility - system doesn't boot,​

driver incompatibilities - bsods, crashes, bad performance,​

windows activation issues - can not activate windows.​

If you insist on trying to skip reinstall, then make sure:

secure boot is disabled,​

fast boot is disabled,​

boot mode (UEFI/legacy/CSM) matches your old system,​

sata controller mode matches your old system,​

boot priority is set properly.​

If windows in old pc was installed in UEFI mode, then set first boot device to windows Boot Manager.

If you can't do that, then reinstall.

Thank you for the reply, am I able to reinstall windows and keep all my data?

 

[SkyNetRising]

Thank you for the reply, am I able to reinstall windows and keep all my data?

Get a new OS drive,
have only new drive connected,
install windows on new drive,
connect old drives after windows install is done.

That way you do not risk accidentally wiping your old data.