Make a xperf trace to see the cause. Install the WPT (http://social.technet.microsoft.com/wiki/contents/articles/4847.install-the-windows-performance-toolkit-wpt-en-us.aspx),
open a CMD prompt with admin rights and type this:
xperf -on latency+ReferenceSet -stackwalk profile+VirtualAlloc+VirtualFree -buffersize 1024 -MaxFile 512 -FileMode Circular && timeout -1 && xperf -d highCPUUsageMemTracing.etl
after you captured 30s of the cpu usage, go back to CMD prompt and press a key to stop the logging. Now compress the
highCPUUsageMemTracing.etl as 7z (LZMA2, ULTRA) to reduce the size. Upload this file to your SkyDrive or Dropbox and post
a link here.
"A programmer is just a tool which converts caffeine into code"