Windows 10: dual boot win7/win10 wont boot to win7 anymore +BSOD "memory managemen

My pc specs * asus z97-p motherboard * intel i7 4790 cpu * bequiet 630w psu * 8gig corsair vengeance ram * samsung 850evo 250gig ssd (win 7pro 64bit drive) * sandisk ultra II ssd 128gig ssd (win 10 drive) * 2x crucial 500gig bx100 ssd (data drives)

i recently rebuilt this into a new case and it had been working fine. Mainly using the win 7 os but more recently using the win 10 os more and more. The way it has been working is that win7 is the default boot and I have to hit the delete key on startup to select win10 to boot from.

today I was on win 10 but needed to reboot to 7. Upon doing so I hit this message:

Secure Boot Violation The system found unauthorized changes on the firmware, operating system or UEFI drivers.

It then gave me the option to boot to win10 as it is the next boot option on the list. Win 10 is now giving me the blue screen "memory management error" although I have been able to get into win10 after some more rebooting.

I ran SFC scanner and it told me that there were some problems that it cannot fix.

Everything is unplugged apart from mouse, keyboard hdmi to screen and ethernet cable. Unplugging the win10 drive from the mobo and switching the win7 drive to another port has not helped.

Has my ssd failed? has win 10 done an update that has caused this problem? It did update today, in fact the first error message I got was after win10 shut down, and when I booted into it again it installed some updates before launching.
thanks for any help!






:)

 

BSODs in WIN 10, Pro

Where did you purchase the "OEM version of Win7 Pro?"

When did you do the clean install of Win7 Pro on the 2 TB HDD?

Have you Activate (Validated; Authenticated) the clean install of Win7 Pro?

Is the Win7 partition fully-patched at Windows Update?

Sounds like you need to format the drive where Win10 resides and then do a clean install of same using a new disk you've created from the "MS Win 10 web site,"
not a backup or clone.

FYI:

• Dual-booting in Win10: FAQ
  
  How to Dual Boot Windows 10 with Other Versions of Windows, macOS and Linux
  

Tip: You'd be better off posting about installing & dual-booting Win10 in this forum =>

http://answers.microsoft.com/en-us/windows/forum/windows_10-windows_install

 

Win-10 will not boot,Win10 partition will not boot. Automatic repair will not work.Automatic repair will not work, neither will advanced options from repair page loading at start up.

<Original title: Win-10 will not boot>

Dual boot PC with win7, win10. After November 2015 upgrade, Win10 partition will not boot. Automatic repair will not work, neither will advanced options from repair page loading at start up.

I was working on my PC using Win10 and received the notification that updates where available to install, along with a countdown of an automatic restart. So I rebooted the computer.

1-Restarting the computer resulted in a BSOD loading screen with the following message:

Attempting "Automatic Repair".

2-The Windows 10 blue screen loads with the following message: "“Your PC did not start correctly. Press “Restart to restart your PC, which can sometimes fix the problem. You can also press “Advanced options
to try other options to repair your PC”".

3-Restarting the PC results in steps 1-2 repeating

Win7 partition works AoK. I can access Win10 partition and all of its files from within external OS. Thus it is not a re-format problem. Sounds like a NTLDR problem to me, should I replace it?

Attempted to revert to previous install point, but Win10 says there isn't one.

 

Hi @vinvanda.

As far as I can understand from your post that you had W7 and W10 as dual boot in two different disks.

From the uploaded data we could not find a hint of the BSOD that you said (it is not recorded anywhere, probably because it happened during boot); but some other statements are supported by the data.

Now, it is STATUS_NOT_SAME_DEVICE; reads as .... "The destination file of a rename request is located on a different device than the source of the rename request".

Now I am making a guess. It it is wrong, please rectify and state the proper situation.
You name the Windows 7 Disk as "system" and the Windows 10 disk as "Win 10". You also said that windows 7 is the default boot. So I am guessing that the boot files are in the the windows 7 disk.

The board is set as Legacy BIOS. So Fast Boot is not possible here; and if Fast Startup is enabled, windows7 needs to disk check in every startup. It is desirable to keep fast startup disabled on a computer with W7.

Now Coming to the "Secure Boot Violation". Windows 7 does not support it at all. And, it is the Firmware Validation Process of UEFI; whereas your system is set to Legacy. I think here lies the issue.

Disable UEFI and Secure boot> Hopefully Windows 7 will boot back.

If it does not, remove the windows 10 disk and run Startup Repair to Windows 7, for three times, with restarts after every instance. Windows 7 will boot back again.

Now remove the Windows 7 boot entry.

Next, attach the Windows 10 disk back and remove the windows 7 disk. Run Startup Repair foe Windows 10.

Now you have two different OSs in two different disks. No possible of any further conflict, just remember to not enable Secure Boot in BIOS.

The computer will boot to the first boot device by default. To choose which OS you want to boot from, use the "Boot Menu" key of the motherboard. For ASUS, it is F8 key. It will list up all possible disks to boot from. Choose which one you want.

 

thank you for the reply. I will try this tomorrow. It seems like windows 10 changed something with an update that may have caused this problem. Here is a reply I got from someone on Reddit who also had this problem since the newest update https://www.reddit.com/r/techsupport..._win7_anymore/

 

May be it is due to an update. I am always on UEFI+GPT, so I havent had any issue with any updates. I've stopped using Windows 7 long ago, when 10 was just a preview. It satisfies all my needs.

Let us know the results of your experiments.