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.

 

[Kyroix 74]

This thing:

4 Ways to Open Disk Management in Windows 10 and 11

Disk Management is the tool you need to manage your storage drives on Windows. Learn how to access it.

www.makeuseof.com

Oh yeh i know what it is but what do i take a pic of

 

[Kyroix 74]

Those are old windows files.
If you forgot to backup some of your user files, you can still find them there.
If you don't need them, then just delete windows.old folder. But be absolutely sure, that you don't need them before deleting.
And no - you can not copy program files from there. That will not work.
You have to reinstall all your apps.

Ok. That’s fine.

 

[SkyNetRising]

Oh yeh i know what it is but what do i take a pic of

Screenshot of Disk Management.
It looks similar to this:

Spoiler

 

[Kyroix 74]

https://ibb.co/rHxL973

 

[Kyroix 74]

Screenshot of Disk Management.
It looks similar to this:

Spoiler

^^^^^

 

[USAFRet]

https://ibb.co/rHxL973

That, plus the existence of windows.old, indicates you did NOT delete all existing partitions as suggested.

 

[Kyroix 74]

That, plus the existence of windows.old, indicates you did NOT delete all existing partitions as suggested.

Oh, thought i did. Well, what should i do then, is it bad? Do i need to delete them? Also i wanna know how to make that 100GB unallocated space be put back into my C drive

 

[USAFRet]

Oh, thought i did. Well, what should i do then, is it bad? Do i need to delete them? Also i wanna know how to make that 100GB unallocated space be put back into my C drive

Since this is a brand new install, you'd lose nothing by doing it all over again.

In the above linked tutorial, look at Section II, Step 6 & 7.
That speaks to DELETING all existing partitions, and continuing with a completely blank drive.

Read that tutorial thoroughly.
Then read it again, and internalize all the steps.
Do what it says.

 

[SkyNetRising]

No. Don't reinstall.

1. Delete 516MB recovery partition.
2. Extend C: partition to remaining available space (by 100GB).

Done.

 

[Kyroix 74]

No. Don't reinstall.

1. Delete 516MB recovery partition.
2. Extend C: partition to remaining available space (by 100GB).

Done.

I like the sound of this better.

1. So how can i add the 100gb unallocated space into my c drive?
2. How to delete the 516mb partition?

 

[USAFRet]

I like the sound of this better. So how can i add the 100gb unallocated space into my c drive?

That will work as well.
His #1 and 2 IS how you 'add' that 100GB space to the existing C partition.

 

[Kyroix 74]

That will work as well.
His #1 and 2 IS how you 'add' that 100GB space to the existing C partition.

Ok. But how do i delete that partition and then add this unallocated 100gb to the c drive?

 

[USAFRet]

Ok. But how do i delete that partition and then add this unallocated 100gb to the c drive?

Exactly as SNR said...

DELETE the 516MB partition
Extend the C partition to the right, encompassing that 100GB space.

 

[SkyNetRising]

Ok. But how do i delete that partition and then add this unallocated 100gb to the c drive?

Execute from elevated command prompt

diskpart​

list disk​

select disk 0​

list partition​

select partition 4​

(select 516MB partition)​

delete partition override​

select partition X​

(select 830GB partition, X=2 or X=3)​

extend​

exit​

 

[Kyroix 74]

Execute from elevated command prompt

diskpart​

list disk​

select disk 0​

list partition​

select partition 4​

(select 516MB partition)​

delete partition override​

select partition X​

(select 830GB partition, X=2 or X=3)​

extend​

exit​

Thank you very much.

 

[Kyroix 74]

Thanks all of you for helping me through this Especially SkyNetRising. Your a legend mate

 

[Jacob 51]

Also a question, all the files from the windows.old folder, can i just paste into my new windows? What do i do with all the files in there. It includes my program files and everything.

Don't copy everything. Just copy the files you need from Program files folders. The directX and visual C++ need to be reinstalled all over and the drivers. You can only copy your personal apps from there like chrome

 

[USAFRet]

Don't copy everything. Just copy the files you need from Program files folders. The directX and visual C++ need to be reinstalled all over and the drivers. You can only copy your personal apps from there like chrome

No, don't copy ANYTHING from Program Files.
There is nothing 'personal' in there.

 

[Kyroix 74]

Yeh i’ve got everything up and running, all the apps are done, just a few more things and i’m back to where i was.

So once i’ve done everything can i just delete the windows.old folder?

 

[Jacob 51]

Yeh i’ve got everything up and running, all the apps are done, just a few more things and i’m back to where i was.

So once i’ve done everything can i just delete the windows.old folder?

You'll Have Problems With Deleting it. Like "You Need Permission From Trusted Installer To Make Changes to This Folder".