A:AnswerOkay, an update or upgrade is installing Windows on top of Windows to upgrade from a lower version to Windows 10. This preserves your files and installed software. A clean install wipes out your hard drive and will erase data and installed software. The upgrade is the easier option (takes LESS work) but the clean install has fewer issues and generally performs better. This option takes longer but is well worth the trouble. BE SURE YOU HAVE A GOOD DATA BAKUP AND ALL THE INSTALLATION SOFTWARE YOU WILL NEED TO PUT YOUR PROGRAMS BACK ON THE PC.
A:AnswerThis is a retail version of Windows 10 Pro, and the $169.99 version is an OEM. This one can be used to upgrade a device, and allows you to transfer the license from one device to another.
A:AnswerNot sure of the build, but you would update it anyway after install. And yes, it does come on a usb flash drive and it is a full retail version so you can install it again should your motherboard fail or if you build a new pc. But it can only be used on one PC at a time.
