Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

This issue has been bothering me for a long while, very weird and couldn't solve it.

When I connect my Nexus 4 Android to the PC, suddenly the Client Service Runtime Process CPU consumption jumps high and my PC slows down dramatically. Please see the screenshot.

The temporary solution was to restart the PC keeping Android connected, the PC would work fine at normal speed.

Cam someone please guide me how to fix this Client Services Runtime Process issue? It's really weird.

share|improve this question
A quick fix to try would be setting the phone up with a static IP and block the IP in Windows firewall. Or a better thing to try would be putting the phone on a different subnet than the computer. – Moses Aug 22 '13 at 22:48
thanks a lot for your reply, but could you please explain why do you think the issue has to do with networking ? what does Client Service Runtime Process (crss.exe) do ? – Dv_MH Aug 22 '13 at 23:08
please provide a xperf trace of the CPU usage: – magicandre1981 Aug 23 '13 at 4:09

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.