To reformat your computer with a recovery or "D" drive (like what compaq or HP computers have), you just boot up pc and on booup, it should tell you what key to press to go do the recovery.
Press the button as indicated and follow the instructions.
You might download the drivers off the internet from the net. But I'm assuming that your recovery partition should have the drivers already for you (at least, the most current drivers at the time they shipped / you bought the computer.)