If you have an HP printer, that is the software that checks for updates to it.
Disable anything related to HP in your start menu.
I recommend Startup inspector to manage the startup menu:
Startup Inspector (manages startup menu – helps you identify aps in the startup menu so you can disable unnecessary programs from running in the background when they are not needed)
Startup Monitor (a small freeware ap available on the same page to notify you and require your permission for any program to add itself to your startup menu)http://www.windowsstartup.com/download.php
Then, uninstall anything related to the HP printer in add/remove programs. Reboot and the problem should be gone.
You can then reinstall the software that came with the printer.