Apple, windows 10, and christmas
drive letter of an USB drive can be any letter from E to Z, It also can be D if you don't have DVD drive connected to the computer &C is the hard-disk drive needed for the Windows. It depends on the hard disk partition you had made.
You would need to purchase the install CD from Windows. The free upgrade to Windows 10 is only offered to current Windows user. If you are not part of their product you would need to purchase it.
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You shouldn't lose anything when upgrading to Windows 10. But it is best to backup any important data, files and folders, to an external hard drive, flash drive, CD disk, before beginning the upgrade.
You can certainly move Windows to an external hard drive but Windows will not boot directly from an external drive. If you are running Windows in Parallels (See links below) you can have Parallels installed on the Mac's drive and then have your Windows virtual machine on the external drive.
You do not have to reinstall Windows if you wish to add an additional drive. If you want to be able to boot from that drive, or to replace your current boot drive, you will need to install Windows on it.
The 2013 Honda CR-Z has front wheel drive.
The 2012 Honda CR-Z has front wheel drive.
The 2011 Honda CR-Z has front wheel drive.
The 2014 Honda CR-Z has front wheel drive.
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