Computerhilfen.com: Screenshot of Windows Vista (regedit) for DVD/CD drivers?

My HL-DT-ST DVDRAM GSA-T20N ATA Device driver (http://www.computerhilfen.com/explanation-d-Driver.html) on my laptop (http://www.computerhilfen.com/explanation-l-Laptop.html) was corrupted by KotOR. There was a topic in which a solution was posted but my Windows (http://www.computerhilfen.com/explanation-w-Windows.html) Vista Start menu does not display (http://www.computerhilfen.com/explanation-d-Display.html) the "Run" option to use the (regedit). Can someone please post (http://www.computerhilfen.com/explanation-p-POST.html) a screenshot that displays how to access the "Run" option or any other solution?

you can use the "search"-field at the bottom of the start menu... its nearly the same as "run..." type regedit in this field an press enter^^