64 GB is more than enough for students, office workers, businessmen, and even professional entrepreneurs. OSx, word processing, internet browsing and downloading, graphics, and much more. Plus a few small games if you ever need some entertainment. You will enjoy it as smaller HDD perform better than the huge storage HDD. You can always transfer files when the time comes as needed or have an external HDD may be say after 6 months or a year. This is a great size for a flash drive for all those valuable information and documents.