I just finished building my new computer and encountered this issue where my secondary ssd would be shown up as "reserved by system D:" instead of just "D:" like it usually does. When downloading apps from the microsoft store it wont even show up as an installation alternative which means that i can only install apps on my C-drive with far less storage... This is how it looks in file explorer: https://gyazo.com/5d14186f5db3d5d1d73f01d6eae30084
(in swedish)
and this is how it looks...
ssd: reserved by system
(in swedish)
and this is how it looks...
ssd: reserved by system