I have experienced the same problem and have been able to resolve it by uninstalling KB5003637 - which appears to be the same update which introduced the weather widget on the task bar. http.sys is included in this update's list of files to be updated.
I and 2 other of my collegues have resolved the problem in this way.
Obviously the delay to any further windows updates must be applied as well or else it sneaks its miserable self back onto your machine.