NIS 2012 to NIS 2013 installation problem

Hi. Help!

 

I was having a recurring issue with my installation of NIS 2012. It kept saying there was a problem to fix and to run the Norton Power Eraser which I always did and it found nothing.

 

I checked for an update to NIS and installed NIS 2013. Installation went fine and finished. It said click to 'Explore Norton Internet Security', and nothing happened. There was a desktop icon. No restart necessary. But no tray icon. And I couldn't access the internet any longer.

 

I logged in to my account and downloaded it from there. Ran the Norton Removal Tool and tried the installation again. Same result. Installation went fine, no tray icon, no internet.

 

Removed with NRT again and thought I'd go back to a previous version.

 

Tried to reinstal NIS 2012 and then NIS 2011 doing the full NRT removal each time. For both NIS 2012 and 2011 the installtion went fine but every time I did the required restart while loading Windows I got a blue screen and an automatic restart.

 

Each time I restarted in Safe Mode and used NRT to remove the software. It restarted fine.

 

So, as it stands I have no trace of NIS on my Windows Vista Business PC.

 

I have the files for NRT, NPE and version 2011, 2012 & 2013 of NIS on my PC.

 

Installing either 2011 or 2012 goes fine, but on required restart I get the blue screen and have to uninstall in Safe Mode.

And for 2013 it seems to install fine. But I am unable to open NIS, run Live Update, or access the internet any longer. And there is no longer any tray icon.

 

I have a subscription until March 2013 so would like to be able to use NIS again.

 

I have tried everything over the last 24 hours. Have restarted my computer countless times normally and in Safe Mode. Run NRT countless times and installed various versions of NIS. To no avail.

 

HELP!!!