Can i trash the previous system in the hard drive?

i noticed that i have a folder that says previous system and system
it has 10.4 GB acc to info.
can i trash this and if not why not?

Glenn Losack wrote:
i noticed that i have a folder that says previous system and system
it has 10.4 GB acc to info.
can i trash this and if not why not?
Sure, and if you ever do need anything from it, it will be in your TM backup.

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