Google Drive is cheap and works well. Just realize 50gb takes forever to upload.

I think Google Drive does not offer 50gb for free, Mega is safe and reliable? they will not delete my files?

Mega has all sorts of limitations, read the fine print. No, they're not reliable.

But the bigger problem is you're expecting free, and long-term that'll never happen. I've been around too long to trust "free" (never actually free, always caveats), and even paid solutions can't be trusted longterm.

Free always deletes files, eventually. Or loses them. And either way, it's free, they won't care.

"Free" is why so many forums have 404 links to lost content online.

I need to upload 50GB files movies, do not you have any indication of something free and reliable for me to upload my files? I do not have storage media because 50GB is a high value, what the best option cloud computing?