After installing Windows 10 on a Laptop PC alongside an existing Red Hat Linux installation you receive a message stating that the GRUB file is missing when you try to boot the PC. Which of the following is the best option?
Reinstall Windows 10, selecting allow multiboot under advanced installation options
Rebuild the GRUB using a Red Hat Disc
Upgrade to GRUB for Windows to allow both Windows and Linux to operate
Ignore the error and boot into Windows 10 for the first time