As stated above ... I'm being spammed by pop ups such as ..... www.premiumvideoupdates.com/tri/update-flash/?subid=65139 ..... that include other products such as McCaffe, PC backup or speedup.
. How do I stop this?
"Adware" - you're infected and it didn't come from here.
You need to find and eradicate it.
Try TDSSKiller from Kaspersky: http://usa.kaspersky.com/downloads/tdsskiller