Um it happened after pressing Show C Drive.
I didn't click anything else.
Yes I have installed windows NTFrameworks3.5. Don't have silverlight installed.
Also, I had a look at bleeping computer for administrator.exe information in the StartUp List. It specifies as a backdoor trojan.
I know that your program is not a trojan but others might think it is

Maybe name it something else
Keep working on it and don't worry about fixing it for me, I've got all the tools I need for my job. Not sure when I'll update my OS
Regards,
Another PC Technician