Problem publishing PDF

Hello,

I've just tried installing Page Plus 5 on my new laptop.

When I try to "Publish PDF", a screen comes up saying:

"Nitro Pro - End User Licence Agreement" asking me to accept the terms and conditions. When I click "Accept" it then says "The service does not have sufficient privileges. Please reinstall".

I have tried reinstalling and also disabling Norton Anti Virus but I get the same error.

Could you please advise how I can fix this?

Thank you,

Steve