When installing NVidia drivers, I point them to the E drive, but they install to C drive, which is full. How can I fix this?

[moonmanmirror]

I can't install my drivers because of this. They insist, for some reason, on installing to the C drive, which is full. How can I tell my drivers not to do this?

 

[USAFRet]

I can't install my drivers because of this. They insist, for some reason, on installing to the C drive, which is full. How can I tell my drivers not to do this?

Drivers do and must install to the OS drive.

What size/type drive is this?