Question BCD corrupted, cannot repair in Advanced Recovery Mode ?

[Kyroix 74]

Hi, i recently did a Windows quality update and i got several pop ups after a reboot saying ‘We couldn’t complete the updates, undoing changes’. This kept coming up. But one time i booted up my pc and it did not start up, instead giving me the screen to the advanced repair mode. I did all the options in the troubleshoot section, nothing worked. I did the command prompt, and ran a couple commands including BCD. It appears my BCD is corrupted. So i did the BCD repair commands, but they didn’t work. So i was stuck.

I clicked "Continue to Windows", but didn’t go back to the same screen, instead the horrible ‘Your device/pc needs to be repaired’. And the 4 options to boot on the advanced recovery, BIOS, and 2 others i forgot. I tried pressing F1 which was the allocated button for booting into the Advanced recovery again, but it didn’t work instead yakking me back to the same screen.

So currently i am stuck on the repair screen, not able to do anything on it except use the button to go into BIOS, but i don’t think i can do anything in that to get into Windows. So i think, 99% my BCD being corrupted is what caused my Windows to not boot up. I need some help because Resetting the PC is my last resort. I hope this massive oarsgraph makes sense to you.

 

[Koekieezz]

So i think, 99% my BCD being corrupted is what caused my Windows to not boot up

Do you have an access to a bootable windows installer? i could help you repair the bcd.

 

[Kyroix 74]

Do you have an access to a bootable windows installer? i could help you repair the bcd.

Sorry i’m really dumb with this stuff, what’s a bootable windows installer? Like a usb flash drive with an installation of windows on it? Or

 

[Koekieezz]

Like a usb flash drive with an installation of windows on it

yes, a pen drive that have a windows installer 😀

 

[Kyroix 74]

yes, a pen drive that have a windows installer 😀

I mean i could buy a usb flash drive and put a windows installer onto it (obviously from another pc) if that works

 

[Koekieezz]

I mean i could buy a usb flash drive and put a windows installer onto it (obviously from another pc) if that works

if you dont mind then, inform me when you have created a windows 10 installer on your pendrive 😀

 

[Kyroix 74]

if you dont mind then, inform me when you have created a windows 10 installer on your pendrive 😀

Hi, i don’t have the usb yet, but i have a question. When i plug in this usb flash drive, with the installation of windows on it, do i boot into BIOS and set the boot to the flash drive?

 

[Kyroix 74]

I think the BCD is corrupted. I did the advanced recovery options like command prompt and ran the BCD Commands and it said it was corrupted. Now I greet the repair screen every reboot. Should I get a usb flash drive and install Windows recovery on it or install a windows installation guide on it? which one?

 

[Koekieezz]

Hi, i don’t have the usb yet, but i have a question. When i plug in this usb flash drive, with the installation of windows on it, do i boot into BIOS and set the boot to the flash drive?

Yes sir, you could just do boot override and pick the flash drive, there you will boot to the windows installer. also for the usb just buy any cheap 8gbs drive.

 

[Kyroix 74]

Yes sir, you could just do boot override and pick the flash drive, there you will boot to the windows installer. also for the usb just buy any cheap 8gbs drive.

So does this windows installation tool that is on the usb drive perform a full reset and reinstall? Or like a ‘Choose what to keep before you reset’ sort of thing? Also once i get the usb flash drive and have the windows installer thing on it, what do i do next? Just want to know in advance

 

[Koekieezz]

So does this windows installation tool that is on the usb drive perform a full reset and reinstall? Or like a ‘Choose what to keep before you reset’ sort of thing? Also once i get the usb flash drive and have the windows installer thing on it, what do i do next? Just want to know in advance

nope, just repairing the BCD, thats why a windows installer from a pendrive is needed

 

[Kyroix 74]

nope, just repairing the BCD, thats why a windows installer from a pendrive is needed

Ok, i got the usb pen drive, and so now what do i install onto it again?

 

[Koekieezz]

Ok, i got the usb pen drive, and so now what do i install onto it again?

did you already make a windows installation boot drive?

 

[Kyroix 74]

did you already make a windows installation boot drive?

Yes, i downloaded the installation boot onto it

 

[SkyNetRising]

I did the command prompt, and ran a couple commands including BCD. It appears my BCD is corrupted. So i did the BCD repair commands, but they didn’t work.

What commands did you try?
Main command to use in this situation is bcdboot command.
syntax: bcdboot X:\windows /s Y:
(X: windows OS partition, Y: bootloader partition. You have to find correct drive letters first)
If you didn't use it, then it's highly unlikely to fix corrupted bcd store.

 

[Kyroix 74]

What commands did you try?
Main command to use in this situation is bcdboot command.
syntax: bcdboot X:\windows /s Y:
(X: windows OS partition, Y: bootloader partition. You have to find correct drive letters first)
If you didn't use it, then it's highly unlikely to fix corrupted bcd store.

I think i did that one and a couple others can’t remember

 

[SkyNetRising]

I think i did that one and a couple others can’t remember

Well - I can't remember for you either. 😀

If you can't remember and you didn't fix anything, then assume, you didn't do it correctly.

 

[Kyroix 74]

Well - I can't remember for you either. 😀

If you can't remember and you didn't fix anything, then assume, you didn't do it correctly.

bootrec /fixmbr
bootrec /fixboot
bootrec /rebuildbcd

That’s some i did.

 

[BFG-9000]

Do you even have a MBR disk on Legacy BIOS? Because that's what the fixmbr and bcdboot C:\Windows are for.

For a GPT boot disk it's either bcdboot C:\Windows /s s: /f all or bcdboot C:\Windows /s s: /f uefi

Keep in mind that just replacing the BCD can lead to all sorts of things not working anymore like System Restore or Hibernation because they will point to a missing volume

 

[SkyNetRising]

bootrec /fixmbr
bootrec /fixboot
bootrec /rebuildbcd

That’s some i did.

Nah. Those will not fix it.

 

[Kyroix 74]

Nah. Those will not fix it.

Ok, can you tell me some commands to fix it?

 

[SkyNetRising]

Ok, can you tell me some commands to fix it?

Told you already. Post #15.

If you have trouble finding correct drive letters for OS partition and bootloader partition in windows recovery environment,
then execute following commands, make a photo and show us here (upload to imgur.com and post link)

diskpart​

list disk​

select disk 0​

list partition​

list volume​

 

[Kyroix 74]

Told you already. Post #15.

If you have trouble finding correct drive letters for OS partition and bootloader partition in windows recovery environment,
then execute following commands, make a photo and show us here (upload to imgur.com and post link)

diskpart​

list disk​

select disk 0​

list partition​

list volume​

https://ibb.co/FJW0K9L

This is what came up ^^

 

[Kyroix 74]

did you already make a windows installation boot drive?

What do i do now? Ive booted onto it

 

[SkyNetRising]

You have 2 drives there.
Which one has windows on it?
930GB partition? or 232GB partition?

Also you have 2 system partitions on 1TB drive. Should have only one.