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From few days my Internet connection is being used by some application internally by my system.

  1. 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)

  2. 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)

  3. 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)

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marked as duplicate by random Aug 23 '13 at 1:09

This question was marked as an exact duplicate of an existing question.

Maybe Process Explorer might help. – Doktoro Reichard Aug 23 '13 at 0:31
thats what i mentioned in my question think it was edited. it just says svchost.exe( and some other apps like chrome which indeed i know its presence and its usage) which is a bunch of services. – kiran Aug 23 '13 at 4:49
And i usually get NSIS error pop up. And then immediatly my network usage will comes to its regular position(which i can find a reason which app is using my net) – kiran Aug 23 '13 at 4:51
Try to understand the answer I gave and the one this one is duplicate. If you deem it useful, try to accept it. On this last comment I suggest opening another question, or, better yet, try to search the Internet. – Doktoro Reichard Aug 23 '13 at 4:55
up vote 0 down vote accepted

Be careful about asking too much questions on a single post.

With this being said, I'll try to answer this by item.

  1. Try Process Explorer. Or Search The Internet. link link

  2. I am going to say Firewall. It is The Right Thing To Do. It shouldn't make your system slow, even because Windows has an integrated firewall. You didn't say the name of the firewall program you used, but if you want to disable Internet access to some programs, you can set up this on Windows Firewall, with no extra overhead on your system.

  3. Maybe it isn't the Internet's fault, maybe it's Windows Update or some other application that needs Internet access to run. Your CPU is always running at 100%. I'm not going to delve myself in technical details but it is. If your problem is the fan making noise try living with a desktop enclosed by wood panels ;P. The fans are probably just trying to cool of the CPU or GPU, and isn't something you could control easily.

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i installed comodo firewall. after installing it suddenly every event(opening any app,even comodo firewall will be done after a minute or more) i didn't see any processing thing happening between me clicking any app and its opening but its just takes tooo long to open. – kiran Aug 23 '13 at 4:45
Strange, and for the question you asked, off-topic of me to try and debug that behaviour. Recommend using either Windows Firewall (that can do what you propose on 2.) or other firewall. I, personally, am happy with Windows Firewall. I did use Zone Alarm's firewall at one time but I deemed it too intrusive. Also, be aware of the [duplicate] nature of the post and, in general, try to write well. – Doktoro Reichard Aug 23 '13 at 4:52
And internet usage is not my issue. your first link it just give network usage which i have got already. i want an app which tells me which application is using my internet bandwidth. – kiran Aug 23 '13 at 5:02
no my CPU isn't running 100%. not even once. my problem is not fan sound. fan sound for a known reason is acceptable and if fan sound with unknown reason annoys me(mostly anyone) if got a reason to fan sound our mind will override it and don't care about it and will continue our work. actually CPU usage is my problem that is happening only due to internet usage. immediatly after disconnecting my internet my CPU usage will come normal. – kiran Aug 23 '13 at 5:12
i will try to write well. we must accept born baby wont walk. if it borns in a world people walks does'nt mean to walk immedialtly. and i said i will try to write it well. thank you. – kiran Aug 23 '13 at 5:14

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