Fixing dual boot boot loader (win10 and 11

[tacit oracle]

I did the built in windows reset this pc on widows 10 and it messed up the bootloader will these steps work to fix the issue, any recommendations would be helpful

[sly sandal]

Are you able to boot into windows...right now?

[tacit oracle]

Only windows 10

I tried following the ai but everything it’s suggested I get a failure when attempting to copy boot files

[sly sandal]

Screenshot disk management app...

[tacit oracle]

disk 4 is supposed to be the OS drive for both. the 365GB should be windows 11

[sly sandal]

Wait for a moment...

[tacit oracle]

did i mess something up?

[sly sandal]

First add a drive letter to that 365GB partition...

[tacit oracle]

got it. i assigned it to U

[sly sandal]

You can add.. boot entry using bcdedit...
However I dont prefer this route.. because if the boot partition is corrupted..you may lose both boot loaders..

So I suggest you create another 100MB fat32 primary partition right now...

[tacit oracle]

how would i do that?

[sly sandal]

Using diskpart in cmd..
Select disk 4.. then screenshot

Run cmd as admin...
Then type diskpart and enter..

[sly sandal]

Type list disk

[tacit oracle]

i did

[sly sandal]

Show..

[sly sandal]

Type...sel disk 4

Oh!..dont try to put commands ahead... you may make a mistake...

Now...after selecting disk 4...
Type..create partition efi size=200

[sly sandal]

I see...you dont have unallocated space..
Keep the cmd minimized..
Right click on 365GB..in disk management..and click shrink volume...

[tacit oracle]

should i do like 300MB so theres a little extra?

[sly sandal]

200MB is enough...

[tacit oracle]

i did 200 and it shows 201

[sly sandal]

Haha!..welp..
Go back to diskpart..
and sel disk 4 again...and this time..set the size 201..

create partition efi size=201...i meant..

[sly sandal]

Now...type list part...and select that partition...
Assign a new letter..

[sly sandal]

Type..format fs=fat32

[sly sandal]

Now type exit..

[sly sandal]

Then type..bcdboot U:\Windows /s T: /f UEFI

@tacit oracle

[sly sandal]

Now whats your motherboard model?...

[tacit oracle]

not 100% sure. i know its a newer asus motherboard for the 9800x3D. i believe its a 790 chipset

[sly sandal]

Asus?..reboot your pc..and immediately spam f8 when screen goes black...till you see boot device list...

Show that boot device list..

[tacit oracle]

I assume it’s the second boot manager

[sly sandal]

Welp!...pick one..

[tacit oracle]

It’s booting into windows 11

Is there a way to get it to pop up the screen to pick which OS I want like it was originally

[sly sandal]

So booting to 11..was a success I assume..
Welp...you can sort the boot order in bios...

[tacit oracle]

Yes it was.

It used to show this. Is there a way to get it back to showing?

[sly sandal]

I find it pain..since when you pick the other os..it basically reboots and loads the other os....resulting in waste of time..

If you want to pick everytime...then f8 is a better option..

[tacit oracle]

It’s just easier for my fiancé. She uses windows 11 and I’m using 10 on her pc but if not that’s fine. I’ll just set windows 11 as the first boot options

[sly sandal]

Reminder!..
Never mess up her pc again.. >.<
Also...never use reset...its a broken feature..

[tacit oracle]

Ngl I was stressing about losing her sims files. She would have killed me 😂