You paid for it, I would at least keep recovery partition and you will need efi partition unless you totally reformat. Some of the meta-data stays on...
Not really. Windows normally installs to two partitions. A small 100MB boot/repair partition that f8 will also give you a repair console. Boot-Repair...
If your system is BIOS, it wiil not update to UEFI. But if you have just installed with BIOS mode and your system is only a year or two old it may be...
You have the standard 100MB boot/repair partition that is part of BIOS/MBR installs. You may have your Windows 8 boot files in the boot partition if...
Wubi does not work with the new UEFI systems with gpt partitioning. It has been discontinued with the newest versions of Ubuntu. Although some others...
Just to be sure is M: a separate drive not just a partition. Windows uses the term drive for both partitions and physical drives. Linux uses sda, sdb...