I am using Linux for more than three months. I had installed Windows 10 before Ubuntu and I was happy with the dual boot. Yet yesterday, I clean installed Windows 11 (using a partition on my HDD i.e. without USB) on Windows 10 partition and forgot to disable fast startup. Powered off my Laptop and even better I also ran sudo update-grub in Ubuntu.
I was unable to boot in Windows. So, I tried some ways to boot. None worked. Consequently, I ended up deleting the partition in which Windows 11 was installed. Now I again made the bootable partition and I can't boot in it using grub. I get the following Error:
This disk is not bootable. Please connect a floppy disk and Press any key to try again...