NIS 2012 INSTALLED but doesn't work

Hi,

having a serious problem here. I had NIS 2012 installed and working fine. i had like 80 days left with my licence till i had an issue my internet connexion, that i could fix after 15 days witout internet. Then when i started my computer, NIS told me that it has expired.

So, i unistalled it, and tried to download the trial version and intall it. It said that the installation is complete, and i when i click on Explore, nothing happens. absolutely nothing. And when i click on the NIS icon in the desktop, i get an error message.

So please, what to do? 

 

 

Error