Svchost. exe what is it? It is a core Windows system process that runs key services in the background. If you stop or disable it, you might cause some crucial features, like Windows Update networking, audio, security services, printing, or system notifications, to malfunction or work improperly. Sometimes, your system can even become unstable, freeze, or a restart would be necessary. In case svchost. exe is hogging a lot of resources; the best thing to do is figure out which service under it is causing the problem using Task Manager or Resource Monitor, and then resolve that service. Disabling svchost. exe should be entirely avoided.