Try to use CCleaner, you can download it here http://download.cnet.com/ccleaner/ = CCleaner is software to clean junk files and temporary files. then after installing run it and it will clean all the junk files detected by ccleaner, after that if you have a anti virus try to scan C drive.
The site is not paying i have 0.011btc earned but its still pending for withdrawal. Its 2days from now still pending bro. I refer many people but its not paying -.-