Depending on your definition of "keep". You can always get a spare USB drive, SATA drive (be it HDD or SSD) and clone the whole thing, so you got a copy of every file. So yes you can "keep" them.
But if you intend to "keep" using things as they are without doing any of the extra work to prep, backup, clone, etc. You are asking to get something for nothing. That is NOT going to happen, you run the real risk of losing everything.