Hi mraxlee,
I saw your posts and I will be happy to help. Here is different link to the UEFI tools. Try that and see if it will install properly for you. This is assuming that you are using Windows 7, is that the case or are you using a different OS?
http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?cc=us&lc=en&softwareitem=vc-116854-1
If you are using Windows 7, try the above link and let me know how it goes. You still have to the option to restore the computer back to factory defaults using the link that DavidPK provide, which I have also included below.
Thank you,