To remove Linux, open the Disk Management utility, select the partition(s) where Linux is installed and then format them or delete them. If you delete the partitions, the device will have all its space freed.
How do I completely uninstall Linux?
To remove Linux from your computer and install Windows: Remove native, swap, and boot partitions used by Linux: Start your computer with the Linux setup floppy disk, type fdisk at the command prompt, and then press ENTER. NOTE: For help using the Fdisk tool, type m at the command prompt, and then press ENTER.
How do I switch between Linux and Windows?
Switching back and forth between operating systems is simple. Just reboot your computer and you’ll see a boot menu. Use the arrow keys and the Enter key to select either Windows or your Linux system.