I have a friend who has a SPro3 64GB. He added a SD 64GB card to give him more storage but Windows is constantly doing updates and totally wiped out all his storage. He uses the surface for business and deletes his spreadsheets at the end of each day. He can't even print because of the lack of memory. He doesn't have anything else on it like photos or songs which would impact on the memory. Any suggestions how to fix this problem?