Lets say you live in a world where the world government has decided people are getting too addicted to the internet and ordered the internet to be shut down for 5 years. The 100 GB of storage is all you have (excluding essential system files for your Operating System). You have 24 hours before the internet is getting shut down. What do you download?
SneakerNet will still exist, so your friends can download different stuff each and transfer it over a local network, or a flash drive. Different people might connect their own local networks to facilitate ease of communication, and boom, you have an internet again. By its very nature of being decentralised, the internet is very difficult to shut down completely.