You cannot install any programs in a different HDD. In windows 10 the c drive is the only drive you can install any programs you want and won't let you install them in any other hard drives.

I disagree. 

I install all my apps on the drive of my choice.

If you look at my screenshot, you will see that the top entry 'install pinnacle Studio 15 to:' gives the option to change the drive and is open and ready to use.

The next entry 'install pinnacle Studio content to:' also gives the option to change the drive. This one is locked to 'Drive H' which is the drive where I installed Studio 15 originally. This drive has been removed from my system.

In fact the default drive for installing the content is the C drive.

Somehow, the drive for the content is locked and as this is on the installation disc, I cannot find a way to change this.  

When I change the drive letter from Drive G to Drive H, using  diskmgmt.msc  I can install Studio 15 from the installation disc, but this means that every other app that I have installed on drive G will no longer work which is why I want to change the drive letter for Studio content from H to G but I am unable to because it is locked on the installation disc. 

 

Just found this video tutorial. Hope it will help you on what you want.

https://www.youtube.com/watch?v=q90HO_rzfqI

NOTE: Make sure to backup your hard drive before attempting this step.