Windows 10: Cannot repair windows using boot options - Can I fix it by booting from a different drive...

My wife cut power to her computer in the middle of a critical Windows 10 update, her PC now won't launch into Windows. I have attempted System Restore, System Re-install, Update rollbacks and literally every option on the boot-up repair, including running chkdsk /r on the drive and nothing seems to work.

I do not have a boot disk for Windows 10 as I bought this PC second-hand.


I do however have a USB SSD drive with Windows 10 installed on it. I can boot from that drive and access her hard drive. I know I could just back up all her content and then do a format of her drive and run a cloning tool to copy the version of Windows 10 off the USB drive onto hers but before I did all that (she has a lot of things to back up) I wanted to know if there was a way I could potentially repair windows using the USB SSD, either by using it as a repair disk or running some utility to repair her version of windows while mine is booted?

:)

 

boot repairs?

i updated the bios on my rampage formula. And now for some reason my system automatically boots to Windows XP and i dont have the usual choices of OSes. I have been triple-booting XP, Vista, and Windows 7 for a while now, and i always got the boot screen where i could choose which one.

I tried putting the discs in and repairing the boot sector or whatever its called for both Vista and Windows 7 and it didnt work. It was kinda automated in that i would choose the repair option and it would automatically pop up that the boot record was missing or corrupt and asked me if i wanted to repair that. It did this for Windows 7 and Vista. Both the partitions are recognized as Windows partitions when using the repair feature. But it still just boots into XP. I can figure it out. I guess i could wipe it and reinstall all 3.

 

AMD data change.......no boot up problem

1st: go to bios, check boot device TYPE priority (cdrom/hdd/etc.)
then, go to hard disk drives (still under boot category), and check if your system hard drive is at 1st place (IF you have more than 1 hdd)
2nd: if your bios boot settings are OK, run windows 7 installation disc, go to repair your system, run fixmbr and fixboot options (i think they are at same option on windows 7 repair - startup repair or something like that)
3rd: if your windows 7 installation disc cannot find your windows 7 installation, reinstall it, but take care - you may have bad sectors on your hdd

please, go step by step, and dont read 3rd step warning before you try 1st and 2nd xD

you can also disable "LAN boot ROM" option under "integrated devices" bios category to never see that meesage again (at least 3 NVIDIA Boot Agent lines xD )

 

UEFI boot options disappeared from BIOS; now getting reboot and select proper boot device

In short, I need to get the system/BIOS to allow UEFI booting of the SSD.

Computer started up today with default BIOS settings.

• Only SSD 1(Windows boot) and SSD 2 were listed in BIOS; HDD 1 and HDD 2 were not visible
• System would not boot. Gave the 'reboot and select proper boot device' message
• Boot menu has no UEFI/EFI (or Windows Boot Manager) entries anymore

I went into Partition Magic/Gparted and confirmed :

• All drives are still showing
• All drives' data is in tact [EFI volume/partition is still listed (and can be browsed/files accessible)]

Gparted print out (note dev/sda2 apparently that is normal behavior) :

/dev/sda1 (locked) EFI System Partition--Fat32--/media/sda1--100.00mb--46.81MiB--53.19MiB--boot,esp
/dev/sda2 (exclamation mark) Microsoft reserved partition--unknown file system--no mount point--128.00MiB--unused spaced--msftres
/dev/sda3 basic data partition--ntfs--/media/sda3--118.58GiB--70.78GiB--47.80GiB--msftdata
/dev/sda4--ntfs--/media/sda4--450.00MiB--327.71MiB--122.29MiB--hidden,diag



As I am able to boot Windows installation from USB, I tried the standard startup repair. It said it was not able to fix any problems.

Next I tried to repair the EFI with Diskpart in the shell:

• sel vol 1 (note that Diskpart states EFI partition is 'hidden')
• assign letter=z:
• cd /d z:\EFI\Microsoft\Boot\
• bootrec /fixboot
• bcdboot c:\Windows /l en-us /s vz /f ALL

It completed all tasks successfully. Unfortunately that did not work.

Other things I have tried :

• Removing CMOS battery and replacing with a new one - my HDD started showing up again after doing this.
• Using the old MBR commands(in hopes it would force the Windows startup repair to recognize and fix a problem)

bootrec /fixmbr
bootrec /fixboot
bootrec /scanos
bootrec /rebuildbcd​

• Loaded BIOS 'optimized'/defaults (the system did this already once before, hence why I am in this situation, though doing it manually seemed like an option worth trying. Note that after doing this and restarting the system, HDD's stopped showing again)
• Removed new CMOS battery and left it out of the system for thirty minutes
• Formatted EFI and msftres partitions, then rebuilt the EFI boot records

In summary, am looking to force the BIOS to see the EFI partition on the SSD boot drive, as it is not an option any longer.