What is this SVCHOST actually? I have couple of them in my task manager and one of them are running at 85% - 99% of my CPU time. This only happend sometimes when I'm connected to the Internet. If I disconnect it the SVCHOST still running at 99% of CPU time.
SVChost is the program that processes services, connecting to net, local policies, security policies and multiple other things, SVChost usually has 4 instances in taskmanager on home and 5-6 in Pro. if it;s running at 99% and slowing you down try and disable unused services to find out what is causing it.