Of the four computers I've run it on, only one has this issue. It's able to scan the OS, the CPU, the motherboard, the optical drives, and the audio, but the computer completely hard locks before it is able to complete. Graphics it can sometimes see, but sometimes I get an error stating "The specified service has been marked for deletion." RAM and Hard Drive remain "Analyzing..." until I reset the computer.
I've tested the RAM with Memtest86+ and the hard drive with chkdsk, neither have any errors.