I bought this key to good capacity and good speed into a mobile computer: I have installed the 2GB version of Windows 8 ... but with difficulty. Indeed, why Microsoft requires the key to be seen as a local drive, and in Kingston, no luck, it is defined as removable. But while Lexar provides its customers software that allows switching its key local or removable at will, or Super Talent presents its keys as local disks, Kingston offers no way to configure their firmware ... This is the only negative I have noticed for this key, fortunately there is a solution, inelegant, to solve the problem through a driver ... 2004! A very positive point is 64 billion bytes are really there, writing reserves are growing.