This is a dualboot Think X1 Gen 9 uefi laptop.
After the upgrade to F36, my grub menu does not have a windows entry.
I have followed instructions in the Fedora Handbook to remove and reinstall grub, but it makes no difference.
there is a Microsoft directory in /boot/efi/EFI
and I can boot Windows by choose the boot loader as the bios boot device.
I remain really puzzled by this. It was a F36 upgrade from F35. I don’t boot into windows very often so my memory of when it stopped working is hazy, but I assume it was the upgrade. All my many efforts to fix it with rebuilding grub failed, including even reinstalling it. osprober just could not see windows. I ended up adding a custom entry.
But actually, my windows install had a problem. I was stuck in a windows update loop, where the latest feature update would get to 100% and then uninstall itself with no useful diagnostic. In trying to fix that, I wanted to boot into safe mode, but it was disabled, and I could not make a Windows Restore image (errors), and booting with a a windows usb image also would not allow restore. My windows boot was allowing me to get into windows, but broken in some subtle way that defeated all efforts to repair. I spent hours trying to fix that, but in the end I had to reimage my laptop (destroying my partitions) and reinstall everything, including Fedora 36. And this time, grub just worked, like usual.
So I have no idea what the problem was, and I will never know now.
If your system allows you i recommend you that you can install windows in gnome box with kvm hypervisor tech it is easy to use and works.
Reactos is also a good option ifbyou want to run exe windows softwares and also wine is there in linux if this options allows your use case then you can do this.
thanks … I have win10 running in qemu (I used virt-manager) and it’s very nice (I normally use vmware workstation but gave qemu a try, and it’s a keeper, at least for windows on my laptop). But sometimes I need windows on bare metal.