Serum Demo Problems

I have tried and tried again to download the demo of serum, but nothing appears. I look in documents and where I put my VSTs, but nothing appears.

You've run the installer?  What OS?  Have you tried "run as administrator" ?

Windows 8.1. And, yes I have.

I figured it out!!! I have a anti-vrius program called Comodo. I disabled auto-sandboxing and the demo is there and I am making patches before it runs out.