Can't boot into Windows after installing Ubuntu, any solution?

Question

Windows

urgent help. I am writing here because ubuntu ru lay down.

I have two screws, one SDD, the second HDD. On the first Windows, the second hangs empty and I thought that I could put Linux on it. He is quite new to it. All my work on SDD, in order not to mess up and erase nothing there, I decided to turn it off altogether for the duration of Ubuntu installation. I installed Ubuntu and hated it when I found that Windows was not loading at all after I connected the SDD back.

https://paste.ubuntu.com/p/9tFN54Rt2G/
And this is newer https://paste.ubuntu.com/p/6vzbZNkBGh/

In the OS selection list on F8, he sees it. But where you need to set the launch priority, it is generally absent. Worth only HDD. I tried to load via F8, the result is zero, loads Ubuntu.

Help fix this urgently because the work is waiting.

Thanks in advance.

Answer 1

I can only guess what happened, linux deleted during installation (but it’s unrealistic, it’s more like bios did it when the disk was taken out) efi entry about windows (it’s not on the disk, but on the chip in the BIOS, thanks to microsoft for creating haemorrhoids to the whole world, this behavior included in the standard).
The simplest solution is to disable uefi boot mode (in the BIOS, this is called legacy mode or mbr).
Another solution, the linux bootloader can start windows, insert an ssd disk, but boot into linux and write two commands from it in the console:

sudo os-prober
sudo update-grub

after entering the user's password, it should think and display a message that everything is OK ... this command will detect windows and add an entry to the boot menu, if anything is discussed here and options