[SOLVED] New mobo - The system cannot find any bootable device

[bostoncommon]

Hello, I have a new build, using "Tuf Gaming b550+ (wifi)" mobo. I have an SSD with windows installed (mulitiboot windows os) from my old PC (no uefi), which I just grab and stick it in to my new PC.

BIOS recognizes the SSD as storage, but not as a bootable device. Any advice on how to make it bootable without losing my data in there? Any troubleshooting steps I should try first?

Here are the things I've already tried:

• changed sata cable
• reflashed/updated bios using bios flashback
• changed to windows uefi in BIOS
• tried optimal defaults again in BIOS
• tried to plug in sata2, sata3, etc.

Also, not sure if is important, but on my (very) old PC, the SSD worked in "sata" mode not in "ahci" mode. My old mobo has 3 modes for Sata: AHCI, SATA, RAID. And it was in SATA mode before removing it. This new mobo only has AHCI or RAID.

Thanks in advance!

Screenshot of errors and other bios settings:

https://imgur.com/a/2fsuQhf

https://imgur.com/a/2fsuQhf

View: https://imgur.com/a/2fsuQhf

 

[USAFRet]

. I have an SSD with windows installed (mulitiboot windows os) from my old PC (no uefi), which I just grab and stick it in to my new PC.

That rarely works in the best of conditions.

But for this, may we assume that you had more than one drive in the old system?
And that when you installed the OS on the SSD, more than one drive was connected?
This resulted in the small boot partition residing on some other drive.
Lacking that, no boot for you.

But, that is mostly irrelevant.
Your new system needs a fresh OS install anyway.

How To - Windows 10 clean install tutorial

If you are looking for the Windows 11 Clean install tutorial, you can find that here: Windows 11 Clean install tutorial (Click here) Otherwise, welcome to the Windows 10 Clean install tutorial This tutorial is intended to help you, step by step, to perform a clean install of Windows...

forums.tomshardware.com

 

[bostoncommon]

Hey, thanks for the quick response!

Yes, I had another old drive HDD that was in my old PC along with the SSD. But I made the SSD primary boot in my old PC, I know it's booting from my SSD and not the HDD.

Yes, actually I didn't really install the OS on the SSD. I cloned it from my HDD (with the intent of just making my HDD the storage disk instead). Unfortunately I cannot install the old HDD in my new PC since I don't have an adapter

But yes thanks, makes sense on what you said. Quick question though, what if I re-clone the SSD from my HDD again? Will that work? I don't have my windows operating systems installs, that's why I cloned it in the first place. Thanks!

That rarely works in the best of conditions.

But for this, may we assume that you had more than one drive in the old system?
And that when you installed the OS on the SSD, more than one drive was connected?
This resulted in the small boot partition residing on some other drive.
Lacking that, no boot for you.

But, that is mostly irrelevant.
Your new system needs a fresh OS install anyway.

How To - Windows 10 clean install tutorial

If you are looking for the Windows 11 Clean install tutorial, you can find that here: Windows 11 Clean install tutorial (Click here) Otherwise, welcome to the Windows 10 Clean install tutorial This tutorial is intended to help you, step by step, to perform a clean install of Windows...

forums.tomshardware.com

 

[USAFRet]

No.
A clone from what existed in the old system is no different than moving the physical drive.

This new system needs a fresh OS install, while the drive is in the new system.

Moving a drive (or a clone) between systems has 3 possible outcomes:

1. It works just fine
2. It fails completely
3. It "works", but you're chasing issues for weeks/months.

I've personally seen all 3.

We all want #1, but that is the least likely outcome.

 

[bostoncommon]

I had to revisit this again and looks like all I had to do was go to CSM in BIOS and choose legacy! Windows 10 so far is good and had everything updated! Windows 8 was buggy but oh well can't win 'em all!