If windows backup is not working and Smartware is taking a lot of your PC resources try to download the latest firmware and Smartware version to see if that fixes the problem that you are having.
The excessive system resource usage happened literally overnight several days ago. I thought maybe a virus/spyware/malware problem but nothing found when scanning in safe mode or otherwise.
I did notice a few minutes ago that I am getting error 0X81000019 if that means anything under the window backup.
I will try to download the new smartware version however, I have noticed many complaints about it using way too many system resources.
Let me know if you or anyone think of anything else.