Norton unable to open.

Apologies in advance, I may have posted this twice.

 

Help or advice please,

When I boot up my laptop the little Norton icon in the bottom right hand does show.

If I click on the main Norton desktop icon I get the following message;

``Unable to open this Norton product. Please restart your PC.''

This has happened before, but normaly fixes itself after a couple of re-boots, however this time it has not.

 

Is my PC still protected?

Do I need to reload?

 

For reference;

Advent laptop, Windows Vista, 3GB ram, 2800hz.

Norton IS 2010, 2 months left to run.

I still have the product key, and have NIS 2011 on a stick, kindly sent previously. to upload to my daughters PC.

 

Thanks in advance