Unable to boot into Windows

[compact trench]

Hi everyone, after updating CachyOS yesterday, I am no longer able to boot into Windows 11. I suspect that the Windows EFI partition may have been corrupted or overwritten by Linux. I would really appreciate any assistance from the experts here.

[sacred kraken]

I can try to rebuild efi partitions... using recovery environment..

It will only save your windows.. not the dual boot...

[compact trench]

Thanks for your reply, can u instruct me to do so ?

[sacred kraken]

press F1 here...

to boot into recovery...

[compact trench]

I tried but it didn't work
It returned to the same screen

[sacred kraken]

then you will need a usb stick...

[next widget]

Here's how to repair it:
Boot into WinPE or WinRE (if accessible), or even use a windows installation media (open CMD via Shift + F10), Now run mountvol Z: /s which mounts the efi partition as 'Z:', if this doesn't work, go to diskpart, select disk 0, and list the volumes to see if the EFI partition is there (labled as 'EFI' or 'SYSTEM' and use assign letter=z to assign a Z: letter), Anyways, to rebuild, you need to run bcdboot C:\Windows /s Z:\ /f UEFI (change UEFI to BIOS if you have BIOS legacy / CSM mode, but i don't think you have BIOS legacy), make sure the drive letters match up (such as windows partition needing to be C or the EFI partition needing to be Z:)

[compact trench]

I had rebuilt BCD following your instructions ,but the problem persists 😢