About 1 week ago the problem Windows Explorer error when opening up System and Security in the Control Panel returned, even with the older network driver. It was working fine with the older network driver for 1 year, well I Asus had a new network driver (version 17.200)and I used that one since a few months ago without problems but 1 week ago the problem came back even with the older network drivers (version 16.600). I decided to install Windows 8 and I don't get that problem with Windows 8. Yesterday went back to Windows 7 thinking that an overclock might have corrupted some files in my system but I still got the problem in Windows 7, after I installed the latest RST drivers for my motherboard. I had that problem with the Enterprise version of these drivers as well. I know it's not my CPU, SSD, memory because when I had that problem a year ago, I had a different CPU, SSD, and brand of memory.