Basically the problem is a printer that won't print. It comes up saying the spooler isn't working because 'HTTP is missing'.

Device Manager> hidden devices> Non-Plug and play Drivers: HTTP is missing

How do I get HTTP back?

I’m no expert but my son’s printer went though a problem similar to this last week. We uninstalled it a reinstalled it…….and it now works.
Have you gone into your control panel and clicked on
Internet options/Advanced and checked to see if the HTTP 1.1 box is checked

In the past i have had conflicts between printers and camara software, would your printer be an all in one lexmark by any chance, and have you got camara software installed.

go to services.msc
start the http service and set to manual
start the spooler service and set it to automatic start up

problem solved!

if not
re-install the printer drivers / software

bye!