Download teh new drivers first and sit them on teh desktop for ease of access later.
1/2/3 Most people recommend Driver sweeper. Personally i use ATI cards and there is an Uninstall utility in the driver folder.
4/5/6. 7 Turn PC back on
it usually helps. 8 install drivers from desktop.
Yes there is a clip on the back of the PCIE slot. If your not sure Google Motherboard images and you will see the clip and how it works.