CMD.exe automatically executes -start command for key.exe

Hello, I was browsing the internet the other day and I've been searching for cracks for particular programs.
Yes, I know, I shouldn't have been doing that. And as and end result I got a virus named key.exe
I've deleted that file yet my cmd.exe keeps running the -start .../key.exe command.
I don't know what do to. Do I need to download a file(cmd.exe) from exefiles and replace my own cmd, or do I need to edit something through regedit?
I've also started coding in c++ making some half-life (GoldSrc) modifications. And the build process starts and when it finishes it launches cmd, which automatically runs the -start command.
It's annoying. Any help would be appreciated.
Here are some images.

Since your computer has been infected by a virus, there is only one sane choice: Wipe your operating system and reinstall everything from scratch. Take any data you may want to keep and just perform a clean install to ensure your system is clean again.

Snick said:

sevenuser79

How to remove the Key virus

Click to Run a Free Virus Scan for the Key.exe malware Malwarebytes Free

Already tried. Doesn't work. My only solution is to reinstall my OS.

Alejandro85 said:

Since your computer has been infected by a virus, there is only one sane choice: Wipe your operating system and reinstall everything from scratch. Take any data you may want to keep and just perform a clean install to ensure your system is clean again.

I actually don't have an installation of windows 7.
I need to call my friend(which he has), he has to come and reinstall it.
I need a Windows 7 Ultimate 64bit

Do you happen to have that version that I could use?