Forum - Win 7 x64 migrated from m.2 Sata to NVME

#1 | Win 7 x64 migrated from m.2 Sata to NVME - boot bluescreen 0x0000007B datum

Sat Aug 10, 2019 3:21 am

Hello,
just copied hdd to me M.2 NVME disc from M.2 Sata and i have boot bluescreen 0x0000007B it suppose to be problem with reading from device.

Chipset is Z170 so only AHCI mode. OS is installed in no EFI mode, i dunno if it matter, is updated backup from 2018 end, because my internal ssd died.. i know that there where some NVME hotfixes, but i dunno if they where part of auto installed packages or not.

Is there some way how to backport NVME drivers to already installed OS to make it again bootable?

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#2 | RE: Win 7 x64 migrated from m.2 Sata to NVME - boot bluescreen 0x0000007B datum

Sat Aug 10, 2019 9:10 am

@ruthan:
The best and safest way to use an NVMe SSD as future system drive is to do a fresh OS installation in UEFI mode onto it (after having wiped all existing partitions by the OS Setup).
If you want to use Win7 as future OS, you have to integrate the MS NVMe Hotfix for Win7 into the BOOT.WIM and INSTALL.WIM of the Win7 ISO file.

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#3 | RE: Win 7 x64 migrated from m.2 Sata to NVME - boot bluescreen 0x0000007B datum

Sat Aug 10, 2019 1:41 pm

Thanks, so for already installed OS is there no way? I know that UEFI woul be better for future, but im now i different situation, so important is if it is possible to make it working without EFI or not?

Except downgrade back to SATA and install the hotfix, if is could work?

BTW is there some legacy to EFI migration tool for existing installations?

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#4 | RE: Win 7 x64 migrated from m.2 Sata to NVME - boot bluescreen 0x0000007B datum

Sat Aug 10, 2019 3:17 pm

@ruthan:
The usage of an NVMe SSD as bootable system drive requires the following:

a) The partition scheme of the target SSD has to be configured by using the GUI-Mode Partition Table (GPT) (Note: Your old system drive has used the Master Boot Record (MBR) partition scheme).
b) To be able to boot off an NVMe SSD, an appropriate NVMe EFI module has to be present within the mainboard's BIOS chip (Note: Should be no problem with for your Z170 chipset mainboard).
c) The OS has to be installed in UEFI mode (Note: A small sized usually hidden EFI partition containing the "Windows Bot Manager" has to be created onto the NVMe SSD).

If you want to avoid a fresh installation of the OS in UEFI mode onto the NVMe SSD, these are the required tasks for you:

You have to convert the current MBR partition scheme of your old system drive to the GPT one (Note: Since Win7 cannot do it itself, you may need a tool. For details look >here<).
Before you are going to clone the current system drive, you have to make sure, that your OS supports the NVMe protocol (Note: Otherwise your NVMe SSD would not be detected by the clone).
You have to create a separate EFI boot partition onto your system drive by using a specific cloning tool, which is able to manage it (Problem: The EFI system partition must contain the information about the NVMe Controller of your NVMe SSD and must have access to the related NVMe driver).

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#5 | RE: Win 7 x64 migrated from m.2 Sata to NVME - boot bluescreen 0x0000007B datum

Sat Aug 10, 2019 4:45 pm (Last edited: Sat Aug 10, 2019 4:45 pm)

There's one thing I don't understand: ruthan reports a STOP 0x0000007b. That's a Windows error but when booting in Legaxy mode the whole drive (and thereby every part of the Windows installation and the boot sector) should be invisible to the Bios! So which boot sector does his system use?

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#6 | RE: Win 7 x64 migrated from m.2 Sata to NVME - boot bluescreen 0x0000007B datum

Sat Aug 10, 2019 5:20 pm (Last edited: Sat Aug 10, 2019 5:22 pm)

@lfb6:
Yes, it is not easy to understand, what exactly ruthan has tried to do while cloning his previously used system drive to the NVMe SSD.
The STOP 0x0000007b BSOD is usually caused a wrong/not matching storage driver.

@ruthan:
If you want help, you should give us more information about what exactly you have done with which Disk Drive before you got the STOP 7b BSOD.
Furthermore you should post the manufacturer and model of your NVMe SSD. If it should be a Samsung 950 Pro, you have neither to switch the partition scheme nor to install the OS in UEFI mode.

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#7 | RE: Win 7 x64 migrated from m.2 Sata to NVME - boot bluescreen 0x0000007B datum

Sat Aug 10, 2019 5:55 pm (Last edited: Tue Aug 20, 2019 12:53 am)

I just cloned whole driver by R-Drive Image.
I have one Samsung 950 Pro, but i wanted to use it for other system, if understand correctly it doesnt need UEFI migration? I can use it temporarily.
SSD is ADATA XPG SX6000 Pro SSD 256GB
MBR to GPT migration, convert partition scheme is easy, but that EFI partition is problem, do you have any good experience with some migration tool? I tried multiple of them and it usually failed, because EFI partition wasnt created, or was created empty etc.
Can buy on eBay some cheap Sata to NVME M-key adapter? Or adapters are only for USB and M.2 Sata?

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#8 | RE: Win 7 x64 migrated from m.2 Sata to NVME - boot bluescreen 0x0000007B datum

Sat Aug 10, 2019 7:34 pm

Zitat von ruthan im Beitrag #7
I have one Samsung 950 Pro, but i wanted to use it for other system, if understand correctly it doesnt need UEFI migration?

Yes, this NVMe SSD can natively boot in LEGACY mode (using the MBR partition scheme). So no MBR>GPT switch would be necessary.

Zitat von ruthan im Beitrag #7
MBR to GPT migration, convert partition scheme is easy, but that EFI partition is problem, do you have any good experience with some migration tool?

No, I always prefer a clean install of the OS, when I want to change the system drive.

Zitat von ruthan im Beitrag #7
Can buy on eBay some cheap Sata to NVME M-key adapter?

What for? The only adapter, which may be useful for you, is an M.2>PCIe adapter. The performance of an NVMe SSD depends on its connection to the mainboard (for details look into the start post of >this< thread).

My current System:
MB: ASRock X570 Pro4, CPU: AMD Ryzen 5 3600, System Drive: 500 GB Samsung 980 Pro, Graphics: Sapphire Radeon RX570, OS: Win10 x64 Pro
Donation Link:
If you are satisfied with my Forum activities, you can send a donation to my personal PayPal account by clicking onto >this< link.

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#9 | RE: Win 7 x64 migrated from m.2 Sata to NVME - boot bluescreen 0x0000007B datum

Sat Aug 10, 2019 7:39 pm

Zitat von ruthan im Beitrag #7
but that EFI partition is problem

The EFI partition itself is not a very complicated construction- Fat32, ID can be changed with diskpart, one folder "\EFI\Microsoft\Boot\" and afaik the content should be part of your Windows 7 installation? Normally this partition can be simply recreated with tools from a recovery- environment?

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#10 | RE: Win 7 x64 migrated from m.2 Sata to NVME - boot bluescreen 0x0000007B datum

Sun Aug 11, 2019 8:57 pm (Last edited: Sun Aug 11, 2019 10:03 pm)

Zitat von Fernando im Beitrag #8
What for? The only adapter, which may be useful for you, is an M.2>PCIe adapter. The performance of an NVMe SSD depends on its connection to the mainboard (for details look into the start post of >this< thread).

Machine which im no tryinb to make booting is my NAS after M.2 Intel 535 crash, which is Win7 based, so for now.. i dont can about performance and much as fuctionality.. and M.2 and inside cases on not too much accesible places, so some Sata adapter would be great, i already ordered USB adapter.. I would that i can by PCI-E card adapter, but i usually dont have slots to waste.

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#11 | RE: Win 7 x64 migrated from m.2 Sata to NVME - boot bluescreen 0x0000007B datum

Tue Aug 20, 2019 12:15 am (Last edited: Tue Aug 20, 2019 12:52 am)

Zitat von ruthan im Beitrag #3
Thanks, so for already installed OS is there no way? I know that UEFI woul be better for future, but im now i different situation, so important is if it is possible to make it working without EFI or not?
Except downgrade back to SATA and install the hotfix, if is could work?
BTW is there some legacy to EFI migration tool for existing installations?

Yes, there is I did it but it is a very long and hard process it is described in this forum, under topic
[Guide] How to get full NVMe support for all Systems with an AMI UEFI BIOS (323)

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#12 | RE: Win 7 x64 migrated from m.2 Sata to NVME - boot bluescreen 0x0000007B datum

Sun Aug 25, 2019 3:59 am

Sorry for late update, but i had to move some data.. I tried Samsung 950 Pro and even with it i had some error, so i had to use M.2 Sata.. Its there something to check if my install is not working with Samsung 950 Pro legacy boot?

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#13 | RE: Win 7 x64 migrated from m.2 Sata to NVME - boot bluescreen 0x0000007B datum

Sun Aug 25, 2019 9:27 am

@ruthan:
You will be able boot a Samsung 950 Pro in Legacy mode, but neverteless the MBR needs the information about the correct storage driver.
An NVMe SSD needs an NVMe driver and cannot be detected and managed by a SATA driver.

My current System:
MB: ASRock X570 Pro4, CPU: AMD Ryzen 5 3600, System Drive: 500 GB Samsung 980 Pro, Graphics: Sapphire Radeon RX570, OS: Win10 x64 Pro
Donation Link:
If you are satisfied with my Forum activities, you can send a donation to my personal PayPal account by clicking onto >this< link.

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#14 | RE: Win 7 x64 migrated from m.2 Sata to NVME - boot bluescreen 0x0000007B datum

Sun Aug 25, 2019 8:39 pm

I booted in Legacy mode.

What exactly means still?
but neverteless the MBR needs the information about the correct storage driver.
An NVMe SSD needs an NVMe driver and cannot be detected and managed by a SATA driver.

MBR and storage driver? I need heard about something like that. Windows 7 boot process is started so MBR code is ok i guess?

So what i have to do in OS booted from M.2 Sata before migration to NVME, if would give it another try?

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#15 | RE: Win 7 x64 migrated from m.2 Sata to NVME - boot bluescreen 0x0000007B datum

Sun Aug 25, 2019 9:15 pm

Zitat von ruthan im Beitrag #14
Zitat von Fernando im Beitrag #13
You will be able boot a Samsung 950 Pro in Legacy mode, but neverteless the MBR needs the information about the correct storage driver.
An NVMe SSD needs an NVMe driver and cannot be detected and managed by a SATA driver.
MBR and storage driver? I need heard about something like that. Windows 7 boot process is started so MBR code is ok i guess?

That's splitting hairs- the MBR system/ legacy installation needs the correct storage driver is what's meant.

You should have installed KB2990941 and thereafter KB3087873 for Windows 7 before cloning and made sure the NVME driver starts at boot (check registry) prior to cloning.

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