Hello everyone, new Zorin OS user here with almost 0 previous experience using Linux and English isn't my first language so please bear with me.
So I've installed Zorin on one SSD and Windows on another with an HDD as extra space. Everything was running fine, Windows appeared as an option on GRUB, I was living the life. Then a few weeks later I decided to upgrade to Windows 11 from 10, did all the prep work required(converted the drive from mbr to gpt which I have the feeling might have something to do with my problem) and it stopped appearing in the menu. Also somehow the resolution of the menu changed to the lowest and I think the refresh rate has dropped too. Basically the letters of the options on the list would appear as they were being typed automatically and every time I would press the arrow keys it would start "typing" the options again. Anyway, I think I've managed to fix that by following some other guides but I'm not entirely sure.
TL:DR Can I somehow make Windows appear as an option in the GRUB menu again?
Edit: Forgot to mention that everything works fine, the only problem is that I have to switch the boot order in the bios to access the OS that I want
See if this guide helps. I suspect you may need to back both drives up first before going any further. I would recommend rescuezilla for both Windows and Linux - but not sure if rescuezilla can cope with Windows 11 ... or perhaps, can Windows 11 cope with rescuezilla!
I see no EFI partition on that...
So both are MBR - which is a good thing. It is better not to have both being different.
Please review the steps outlined in this guide, you can replace where it calls Ubuntu with Zorin: https://www.maketecheasier.com/fix-windows-mbr-from-ubuntu/