I have followed the suggestions for solving the HTTP.sys issue, down to the point where it is suggested to stop the HTTP windows service. The command window first says that that HTTP service could not be stopped. Then I tried to disable HTTP.sys completely: in the driver tab the current status says "Stopping". When I return to the command window and try to stop the service again, It says that the service is starting or stopping, please try again later.
To complicate matters, sometimes the problem resolves itself.
Is there any way out of this hell?