Cannot find FortiClient in Windows 10

[adm]

Hi, everyone. 

I have a strange issue with FortiClient on a Windows 10 machine. 

FortClient seemed not to be present on that machine, so I downloaded it from the site. 

Strangely enough, when I execute the download, it says UPGRADING Fortclient, not Installing.

When the update finishes, I do not see any trace of FortiClient, not even in Programs & Features (in Control Panel).

Doing a search on the system disk shows very little result as wel. 

So it looks it's like in a "half state". 

Any ideas someone on to get this fixed???