halion one/sonic se missing from cubase ai 8

Would like help please!!

I have had to install Cubase ai 8 on a new computer due to problems I was having. I have changed over all my vst products as well.
The problem I have is that when I installed Cubase on my new pc, HALION ONE and HALION SONIC SE, which are supposed to be included are nowhere to be found!!
Can anyone please tell me what may have gone wrong and how to fix this?
Any help would be very much appreciated.
Thank you!

Happy New Year!!

Sorry, I also forgot to say that my other vst plugins(native instruments–kontakt products are not showing up either!!