I am having one big problem. I had dual-boot on my PC: I had Windows 7 and Ubuntu. Yesterday I upgraded to Windows 10 and I deleted the partition where Ubuntu was installed.
When I restarted my laptop it says grub rescue. I tried with these commands: ls, set, root but when I type insmod nomral it says unknown file system. Also when I try ls (hd0,msdos1,3,4 or 5).
I don't have any OS CD or USB and I only have this laptop. I need it so much today.