This question is an exact duplicate of:
From few days my Internet connection is being used by some application internally by my system.
I want to know which application is using it? I used Task Manager to see which resource is using my network it just say svchost.exe (which is internally running more services, processes can't figured it through it)
Can I restrict my Internet access to only certain applications (I think you are gonna say
firewall, i even tried it but it is making my system damn slow, i have an Intel i7 with 8GB RAM, so i uninstalled it)
And this usage of Internet making CPU usage more than 15% which make my PC hotter. In turn makes my fan runs fast which in turn makes sound. Immediatly after disconnecting my Internet my CPU usage will go normal (1 or 2 % mostly even with lot of apps opened)