[dba-Tech] Closing up notification holes

I had a HP printer installed and I kept getting automated upgrade popups, 
that didn't work. The only way to dismiss the pop up is to reboot.

I uninstalled the printer, thinking that would close that notification hole, 
but it didn't. I'm still getting them.

Customer support is almost non-existent... took several minutes answer 
questions only to find myself in a hole. I'll probably call their 800 number 
today, if I can find a minute, but I don't expect much.

Is there a way to close a specific notification process via some Windows or 
registry value?

Susan H.