If, 1, you are attempting to download LO -
then delete what you have
then go to libreoffice.org
<users%2Bunsubscribe@global.libreoffice.org>
then download whichever version you prefer with whatever options;
if, 2, you are attempting to add something to LO -
then open LO
then open whichever particular program you prefer;
if, 3, you are attempting to view your C: drive -
then this is separate from LO;
if, 4, you are attempting to view your LO folder -
go to AppData --> Roaming --> scroll to LO;
if, 5, you are attempting to view your fonts -
you might 'search' fonts which should pull up any folders, ...
you might have on your machine,
or you might open any program - including LO - to view which
fonts are active,
if something else, then please ask again,