Windows 11 disk no boot

Stanley1843

Member

Join Date: May 2024

Posts: 48

Country: Swiss
#1

Windows 11 disk no boot

10-18-2025, 04:41 AM

I tried to install Linux on a secondary disk in my PC and after a failed Linux grub installation my PC didn't boot in Windows 11. I saw the message (Reboot and select a proper Boot device).

I made a bootable USB windows 11 and I run the below commands on the cmd but with no succeed.

DISM /Online /Cleanup-image /Restorehealth
The DISM.... command shows me the error 87.

sfc /scannow
chkdsk

bootrec /FixBoot
bootrec /ScanOs
bootrec /RebuildBcd
For some reason it writes(Total identified installations 0) like there no windows in the nvme disk.

How can I repair my disk?
Attached Files
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stj

Great Sage 齊天大聖

Join Date: Dec 2009

Posts: 31246

Country: Albion
#2

10-18-2025, 05:04 AM

did the linux installer say that grub failed?
you dont have secure-boot enabled in the bios do you?
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Stanley1843

Member

Join Date: May 2024

Posts: 48

Country: Swiss
#3

10-18-2025, 05:17 AM

Yes the linux installer said that.
I have a secure boot as I saw in bios (attached pictures).
Now I have disconnect and the linux disk and the only disk in my PC is the windows 11 disk only.

Attached Files
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CapLeaker

Leaking Member

Join Date: Dec 2014

Posts: 8339

Country: Canada
#4

10-19-2025, 09:51 AM

Try boot repair disk. That used to fix mine a while back.
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Windows 11 disk no boot

Windows 11 disk no boot

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