Lots of errors that started when NIS disappeared one day. Help!

Here's what happened.  I turned off my computer and everything was running fine, but when I turned it on the next morning my Desktop NIS shortcut was missing, as was the little icon in the tray at the bottom of the screen.  I went through 'all programs' from the start menu to try to pull it up, but it came up with 'Norton Trial Version.'  It wasn't right.  For one, I've never really used a trial version of Norton - when I bought my computer I bought a subscription with it. 

 

First thing I tried was restoring my computer to an earlier time - two days before I noticed the problem.  When I did, my NIS shortcuts were all back, but I couldn't open from Desktop, tray icon or from programs.  The Norton Remove and Reinstall tool was coming back with an error message saying it wasn't able to verify which version of Norton I had or any subscription information.  So I used the Norton Removal tool to try and manually reinstall it.  It removed Norton just fine, however the Norton installation tool failed, and then the error report failed to send.  I've tried several different restore points going back as far as 20 days, but with the same problems opening norton and failure with RnR.  I've tried removing Norton through the control panel and reinstalling it from the installation file I downloaded when I first bought my current subscription.  Nothing has worked.  I have no idea what else to try at this point. 

 

Further, I've gotten the 'Solve PC issues' message every single time flagging me for not having virus protection.  Through the problem center there's the option to turn Norton back on, but every time I click it I get asked for permission to run Norton, whether I trust it and I click 'yes.'  It won't turn on that way either, the message doesn't go away and I keep getting prompted to say 'yes' to allowing Norton to run.  But it doesn't run.

 

Any help would be greatly appreciated because this is incredibly frustrating.  Am I missing something?  Is there another problem happening altogether?  I've had problems with Norton not opening before, but I was always able to get it fixed.  It's almost like something is blocking anything Norton.