I have had mine for a bit over a year now and all the memory is used up. I receive repeated warnings about the start up disk being full which means I have to delete files to continue to use the computer, and now I am running out of files to delete. While I have no movies, I am told I have 45g of movies. Deleting all movies and videos from photos, the gigs used for movies do not go down. This is an old problem with Apple which has no solution. Just google 'startup disk is full' or 'where are the movies on my macbook' and you will find countless queries with countless answers on how to delete movies and how to find movies. But none of these answers help the victims of what I think must be some sort of virus. One user reports that his storage shows 200GB of movies even while he has only 128GB memory.  Apple should use some of its considerable resources to fix this years old problem. The only thing people can do is to sell the computer even if it is only a year old. That is probably what happened to me. I bought a refurbished computer, which must have been an infected computer, which is now telling me I have used up 119GB even as my back up program Backblaze can only find 67MB of files to back up (because I have deleted pretty much everything I don't use regularly). Of course this problem will only be noticed by the buyer after about a year or so. This is the second time I have to give up on an Apple Macbook Air after not much more than a year. The irony is that I bought a cheap refurbished computer because I figured it would only last a year anyway. I think the better strategy is to buy a brand new one. Of course I could switch to Microsoft. But Microsoft is worse I understand, so I'll stick with Apple and run the risk. I will make sure not to copy my current files to my new Apple though.