[Gerald]

In normal cases, is the change of O/S to reformat you hard drive first, of course, and then insert the disc to make an install, check that the boot sequence is correct, and to boot from the disc and the change is made in the Bios if this were needed, after installation, so drivers must be added, in which Windows is capable of good self, but some drivers, you must apply yourself and move up later depending on the needs that exist,W7 will search for the current update, so it is done by automatic,so do not do updates now that they still disappear when a format other than Bios, but I do not think it necessary to do that right now, but you focus on the primary first