Z590 pro goes straight to bios on power up.

citay

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No, the 980 does not have an asterix in the GPT column.
Asterisk. Asterix and Obelix is something else... 😉

This means it is not properly prepared for an UEFI BIOS, because it has an MBR instead of a GPT. I don't know how this happened, but usually with an M.2 NVMe PCIe SSD, it has to have a GPT in order for the BIOS to boot the OS. You have to do a "MBR to GPT conversion" for the boot drive, it's a short procedure, then the new BIOS in UEFI mode should be able to boot from it. If it's still not working, then it requires some more elaborate steps via command line, but first see if it works.
 

citay

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Can you check if it now has an asterisk under GPT? Then we can add the bootloader with a couple commands.
 

doug.hogart153b02d9

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If I understand correctly, you have a smaller 970 drive which boots fine on this PC and merely switching to a Samsung Data Migration cloned larger 980 drive fails to boot on same PC. If all the troubleshooting here (such as updating to latest BIOS and trying a different M.2 slot, etc) isn't helping, have you considered re-cloning to 980 using different software? A search of internet shows that might help. Assuming you could always clone again later, another troubleshooting technique might be to use a USB with Windows to install clean onto 980 drive and make sure that boots (when installing, clean install includes making sure you change from the upgrade choice to the custom install choice, and then delete any existing partition until the only entry says Unallocated Space before you press the Next button).
 
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No change... neither of the M.2 drives boot - this must be some other system issue, as I said earlier in the thread, I did flash new bios, other than that nothing has changed
 

citay

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I have done that several times... has no effect, but I haven't changed any settings, so why would it?
You have done the MBR to GPT conversion (that i linked to) several times by now? I don't understand. As i said, no asterisk means it doesn't have a GPT, so you need to do the conversion. Then i asked you to verify that it now has the asterisk. Maybe you misunderstood. Once it has the asterisk, we should be able to add the Windows Boot Manager in the BIOS eventually.
 
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These messages are very 'out of order' - I have only just seen the MBR to GPT conversion - I will have a look at that tomorrow, thanks for all your help.
 

doug.hogart153b02d9

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neither of the M.2 drives boot - this must be some other system issue
Thanks for that info, I seem to be confused. I had thought the smaller 970 was booting in that same PC and the trouble was just with the larger 980. If your previous booting was on a different PC then you are troubleshooting multiple things like the cloned configuration (whether it was non-UEFI/MBR etc - the main help you've been getting from others) and/or whether there might be something like CPU socket pin damage (which might affect first M.2 slot differently than other M.2 slots). As I mentioned, if it is easy for you to re-clone later, one troubleshooting technique might be to try installing Windows clean onto the 980 (either starting with a Secure Erase of the drive or being sure to delete any partitions until Windows installer shows only "Unallocated Space"). That is always the preference (rather than cloning), but in this case it is for troubleshooting (to verify that M.2 is working fully).
 
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...some progress - I have used Useus and converted the partition to GTP, checked that this is registed in the List Disk in Diskpart. However the disc still does not appear in the BOOT screen in Bios, hopefully there is more magic that will resolve this?
 
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citay

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Yes, it needs to be added as an entry now. Do the same procedure as before:
At the Windows installation screen, choose "Repair the computer", then choose "Troubleshoot" > "Advanced Options" > "Command Prompt".

  1. Type and run the command :
    diskpart
  2. Type and run the command :
    sel disk 0
  3. Type and run the command :
    list vol
Volumes anzeigen

  1. Verify that the "ESP" (EFI System Partition) is using the FAT32 file system and assign a drive letter to it (Assign a letter that isn't already in use.):
    1. Type and run the command :
      sel vol <number of volume>
    2. Type and run the command :
      assign letter=<drive letter>:
    3. Type and run the command :
      exit
  2. Laufwerksbuchstaben zuweisen

  3. Type and run the command :
    cd /d <drive letter>:\EFI\Microsoft\Boot\
  4. Type and run the command :
    bootrec /FixBoot

  5. cd /d :V\EFI\Microsoft\Boot\
  6. bootrec /FixBoot
    1. Now: Rebuild the BCD store
    2. First run the command below to backup the old BCD :
      ren BCD BCD.old
    3. Now recreate it using this command :
      bcdboot c:\Windows /l en-us /s <boot letter>: All
    4. Bootmanager reparieren

If all goes well, you should be able to boot that Windows afterwards.
 
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Hi, something is not quite right...

My Volume 5 is called ESD-USB, it is FAT32, I have assigned it Letter V

The DVD=ROM is letter J

So this:
Type and run the command :
cd /d <drive letter>:\EFI\Microsoft\Boot\
I assume becomes:

cd /J V:\EFI\Microsoft\Boot\

But the system posts: The System cannot find the path specified
 

citay

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ESD-USB is wrong, that's the USB stick you booted from. It has to say ESP. Don't go 100% by the screenshots, those are just examples, you have to enter the correct volume number yourself.
 

dvair

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Windows Media creation tool labels the usb disk as ESD-USB.
 
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Hi, I'll get back to this in a day, or so, I've got a couple of long days for work - from memory, the 980 that I cloned onto, only has one partition, but I will get back to you.
 
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Thinking this through, the stuff on my Desktop PC has been migrated up all the way from Windows95 - perhaps I need to bite the bullet and do a clean install of Windows 10 - It will be a bitch, as I have 'a lot' of Apps - but this may be the way forward. What do you think?
 

citay

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I personally always do a fresh install with a new board and CPU. I always complain about the amount of work it is to set everything up again, but i always end up being glad that i did it. The programs i never use, i don't install again. The programs i do use, i download the newest versions of everything and have them all up to date afterwards. The things i could improve in the configuration etc. that i was too lazy for before, i change. Just do a couple programs a day and in one or two weeks you'll have a better setup than before.
 
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