Portable version of DriverMax, a utility that allows you to create backups of all your drivers and save them to an external location such as a pendrive for when there is a problem with them, or for when you perform a format, for example.
You will be able to use DriverMax to make everything work again as it was before in a simple and practical way. But you should install the program when your computer is in perfect working order so that you can make backups for when there is a problem.