Samsung 970 EVO Doesn't seem to want to work.

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smi1ley

Jul 17, 2018
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Ok, so I've been through numerous threads about M.2 ssd's and after so much trial and error, following peoples suggestions which always end up being the same, I've had no success as of yet. At the moment in time, I have clean wiped my M.2 and I'm not here to ask your help.

Let me start off with giving you my spec's;

-Windows 10 Home 64bit
-Asus X99 Pro Motherboard
-Intel Core i7-5820K 3.3GHz CPU
-Gigabyte GTX1080
-16GB Corsair Vengeance RAM
- 2x Samsung 840 evo 120gb (1 has OS)
- 1TB HDD
- 2TB HDD
- Samsung 970 evo 250 M.2 NVMe (Culprit)

Ok, so I managed to get the M.2 installed, and I can format it and use it like any other storage device, but I decided I wanted to install my OS on it, migrate it from my 120gb 840 using Samsung Migration software, so I did that, it migrated and I could see my windows files on the new M.2. Proceeded to check online to make sure everything I was doing was correct and learn some new things I hadn't let learnt, here are some of the things I did;

- Downloaded Samsung's NVMe driver.
- Created a bootable USB drive with windows 10
- Disabled the CSM in my BOIS
- I changed the 'Secure Boot' option to 'Other OS'
- Cleared secure boot keys
- Unplugged all other SATA and USB drives
- When trying to install windows 10 from boot drive to the M.2 with my migrated OS on, it gives me the Error: "Error: Windows Cannot Be Installed to This Disk. The Selected Disk Has an MBR Partition Table. On EFI Systems, Windows Can Only Be Installed to GPT.
Issue"
- When I tried to fresh install on the M.2, it installed windows, made all its relevant partitions, but when I came to reboot and load it, it was not in the boot options.

Any help would be great, I really don't know if I have missed something out, whether my MOBO doesn't support this M.2, but i haven't seen anything to suggest otherwise.

Thanks, Smiley.
 
Solution
drtweak
Other thing is you will want to delete ALL partition on the drive. You could be booting in to uEFI but if you cloned it and it is a MBR it won't work.

You may also need to pull up diskpart during the install. When you get to the disk selection press SHIFT+F10

Type in and hit enter for each line. X is the Disk number


diskpart
list disk
select disk X
Clean

Close the CMD. Then select the drive as a whole and click next. it will take the cleaned disk and repartition it as GPT.
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drtweak

drtweak

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Sep 17, 2012
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Issue it is it booting as Legacy still it seems.

Do this.

Redownload Windows 10 (Google Windows 10 media creation tool and when you run it MAKE AN ISO NOT A USB!)

Once the ISO is downloaded plug in your USB Stick. Now download a program called RUFUS.

Once open select your USB Drive form the top drop down. Towards the bottom there is a button that looks like a CD Next to the dropdown box that says FreeDOS. Click on that and select your ISO you just downloaded.

From for the Partition Scheme (Second box from top) Select the last one which should be GPT for uEFI. Leave then rest alone and hit start.

Now try booting from that USB drive and see if it works.
 
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K

karenjoly

Estimable
Apr 13, 2018
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I'm guessing the Samsung EVO OS drive which you cloned to the M.2 drive is partitioned using the MBR scheme. Fine and dandy. The M.2 should boot Ok but you don't seem to refer to that . You now appear to want to separately install windows on the M.2 drive but have set up the Asus X99 main board to use the UEFI interface which requires a GPT partition scheme.
Leave aside installing windows on the M.2 for a second, reclone the Samsung OS drive to the M.2 drive and re-enable CSM in the bios . Can you boot the M.2 drive into windows ?
 
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smi1ley

Jul 17, 2018
3
0
10
That was the first thing i tried, I just tried cloning the OS over, and loading it off the M.2 but it just went straight to the BOIS and wasn't in the BOIS boot menu at all. I'm going to give drtweak's method ago. I've just been so busy with work.
 
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karenjoly

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Apr 13, 2018
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What device are you using to install Windows ? It must be an UEFI aware device. Whether a usb or optical device, to install properly the device must be associated with UEFI/'Windows boot manager. There is no reason whatsoever you cannot install windows on the M.2 so long as UEFI is properly deployed.
 
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smi1ley

Jul 17, 2018
3
0
10
I don't think installing windows onto the M.2 is the issues, I've managed to do it, (only on a fresh install, not migrated). Its just my BOIS doesn't detect it as a bootable drive.
 
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karenjoly

Estimable
Apr 13, 2018
1,328
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So you got around the ERROR regarding UEFI by installing Windows.
When you installed windows, did the install device say "UEFI" or "Boot Manager" beside the usb/cd designation ? Did you delete all the partitions when asked where/ what disk to install to ?
Can you take us through each install step ?
 
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drtweak

drtweak

Illustrious
Sep 17, 2012
6,342
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38,640
Other thing is you will want to delete ALL partition on the drive. You could be booting in to uEFI but if you cloned it and it is a MBR it won't work.

You may also need to pull up diskpart during the install. When you get to the disk selection press SHIFT+F10

Type in and hit enter for each line. X is the Disk number


diskpart
list disk
select disk X
Clean

Close the CMD. Then select the drive as a whole and click next. it will take the cleaned disk and repartition it as GPT.
 
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