How do i upgrade to windows 10 for free?

i have a asus laptop i got and it has windows 7 enterprise and i want to get it to windows 10 for free but the media creation tool says i can’t upgrade this version of windows. how do i upgrade windows 7 enterprise to windows 10? idc which version of windows 10
Update: it’s a powerful laptop it has good specs
Update 2: it’s not an old computer
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