Let's turn off DWM temporarily since it seems to be using a lot of resources:
Start, All Programs, Accessories, right click on Command Prompt and Run as Administrator, Continue. Type with an Enter after the line:
net stop uxsms
(This will switch you back to the Basic desktop. It will come on again if you reboot.)
(Let's also turn off the Windows Media Player Network Sharing Service which is also hogging a lot of resources. It's not something most people need anyway.)
net stop wmpnetwksvc
Run Process Explorer again and post the log. Remember to let it sit for a minute before saving the file.