Why is UEFI ignoring Windows 10?

Question

linux

Hello.
Notebook: Acer Aspire E5-575G.
BIOS: InsydeH2O Rev. 5.0
OS: Kali Linux and Windows 10 (it seems to be there, but it seems to be gone).
A few months ago I installed KL as a second OS for regular review (I don’t rummage around in Linux at all and I expect reproaches like “why did I get there at all”).
The GRUB bootloader did not see Windu and therefore it was possible to run CL only through Boot mode Legacy.
I didn’t do anything special there, and as a result I forgot about it at all (Boot mode was transferred to UEFI and Windows immediately started).
I recently disassembled the laptop and pulled out the HDD, there were no mechanical damages, I did everything according to science and carefully. After connecting and starting the laptop, the message No Bootable devices popped up.
* In both UEFI and Legacy, the BIOS sees the hard drive, but the inscription still crashes.
I read on the Internet that one of the solutions to this problem is to transfer Boot mode to Legacy mode.
And the problem was partially solved: the GRUB bootloader started to start, but with the choice of a single CL.
In the CL itself, in the "Disks" application, I saw the layout of the hard disk, which shows that Windows still exists on the hard disk.
I decided that adding the ability to select Windows to GRUB would solve the problem, shamanized and eventually was able to add it there, but when it starts, the laptop just reboots, as if I restarted the laptop (no logos slip through).
In the same application, it can be seen that partitions of only the CL itself are mounted (the "play" icon in the corner of the partition).
You can mount and run Windows partitions, but nothing changes when you restart and you can mount and run them again.
In the file manager, you can climb through the Windows files without any problems.
I tried to restore Windu through an image on a flash drive, but there was a problem that the restore point was made in EFI, and the system uses the BIOS.
Something like that. UEFI mode started to simply ignore the hard drive. I would be grateful for any information.

Answer 1

Have you tried brute force? Turn on UEFI back, boot from the Win10 flash drive, demolish all partitions, format the disk, install the system, indicating "I don't have a key", and it should then be activated without any problems by pulling the license from Microsoft servers. If there is some important information on the laptop disk, first save it (for example, by booting from a Linux Live flash drive and plugging in an external USB drive, or by pulling the disk out of the laptop and moving it to the desktop). Just in case, you can first pull out the Windows code from the disk (five groups of five characters each), there are utilities for this. If you cannot format the system drive from a Win10 flash drive, again, plug it into the desktop and clean it with the Low Level Hard Disk Format program. Try it and tell us the result.