Hello,I am not able to install the Engineering Toolset v10.5 on my Windows 7 machine (I see on here that it is supported). I start the executable, I agree, verify location and say install. Shortly after it starts installing the "Files in Use" window pops up telling me files are currently in use. I have nothing open while trying to run the executable, and nothing is listed in the box to actually close. Nothing seems to work, I’m stuck at this point. Been reading on here all morning trying to find something.Any help would be appreciated. Thank you