Why does installing a game/program sometimes take several hours, but uninstalling usually take no more than a few minutes?
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Installing requires the computer to allocate (i.e. “reserve”) enough space for the program being installed. After said allocation, it then needs to write the information to the drive. If you’re installing a game by downloading, this also means you’re throttled by the speed of your personal internet bandwidth.
Uninstalling is basically the computer marking that allocated space as “for sale”. To you, it looks deleted. To the computer, nothing is ever deleted. “Deleted” info is just info that’s been marked as available to be overwritten. That information only disappears when it’s been overwritten, which is also why data recovery can recover anything you recently deleted
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