High usage SVCHOST (DCOM LAUNCH) processor

I use HP laptop P8600 processor core duo 2 with windows vista home 32-bit premimum of the operating system. the CPU usage remains at 100% most of the time. the check Task Manager, I found svchost (launch of Dcom) blocks more than 50% of the CPU usage. for this reason, my laptop is slow. How can I reduce the high CPU usage?

I tired to clean my PC with anti-malware as described by THE C. I found two torjans which i deleted, but would not solve the problem.
HP service center asked me to restore the PC to an earlier date. But then I found that the problem of the SVC host occurs mainly when I connect my mobile phone Nokia N73 via usb or bluetooth. So i uninstalled all the software and Nokia phone records, but also the problem of the high utilization of the processor did not resolve. then I reinstalled the same.
I uninstalled the internet security of Kaspersky 2010 I recently installed before the problem for the first time on my PC, but it also could not solve the problem.
So finally I restored the PC to an earlier date and with this now my CPU usage is with within the normal limits. Svchost (Dcom launch) is not at the top of the cpu usage list page.
Finally solved my problem but I don't know yet what was the real cause of the problem.

Tags: Windows

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