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 ...

This is the screenshot that shows the problem

Hope you all had a very happy Christmas. When I originally installed Studio 15, I had two external drives G and H.I installed from the installation disc to drive H. I have since removed these drives and installed a 2TB drive, labelled drive G. When trying to reinstall 15, I get the following screen this gives the choice of where to install the ...

Not yet. I am going to give it a go now.

This is my problem when I try installing from the disc  

I don't know how to post a pic. I changed them with diskmgmt.msc 

I manually changed the drive letter and installed to H. Then changed it back to G. The program loads but still with references to drive H. I cannot access IMPORT I have used regedit, the path is now showing as H. I have changed this manually to G but to no avail. Now reversed change 

(default) (value not set) Language..US Main path..blank Status..blank 

REG_SZ

Why now, why not on the day you first responded?