Hi there.
OK, I think we need to get you sorted before we go any further. There are some minor things we can get rid of, but they will not be contributing to your current situation. You might want to run CleanUp! on that spare drive and clear out the junk!
I firmly believe that this is related to the MS update and the HP software. I would like you to go back to the link I posted earlier, take your time and go carefully through each step, but also write down exactly what you are doing through each step. Be as thorough as you can. I then want you type up a 'Report' of your actions and post it back in this thread. Please don't think that I don't believe you did it the first time - once I know that you've followed the MS guidelines and it doesn't work, then that's something else we can rule out. I also appreciate that making Registry changes can seem daunting for some, especially if not used to it.
Don't do anything else in terms of the fix I posted - we can always come back to that later.
I hope you'll give this a go - we need to get your system back towards something approaching normality.