Forget it.  Those registry scanners/repair programs are mostly "snake oil".  They can even do more harm than what they claim to fix.    There are a bunch of these types of programs around. There is one on TV now about "fix my PC" and they will really do is "lighter your wallet". 
So I went to the support.dell.com site and noticed something called Free PC Health Scan. I clicked on it and then the free check up button. This apparently is iolo technology. The system check up ran. It told me I had a slew of problems, mostly in the registry. At the top of the results page there appears to be a blue rectangular button that says 'Fix Errors Now". So I scrolled the mouse over the button, it indicated it was a link and I clicked. Nothing happened. It indicates it's a link but apparently it's not. Or is it? Can someone tell me how to fix the plethora of errors this program has detected if it cannot be done with this inoperative fix button. There is no other information or link that I can see on this results page other than the one that doesn't apparently work. Thank you.
iolo system check up