I am currently using Windows 10 LTSC (the newest version) and after some basic configuration it is INSANE how responsive it is. It boots basically instantly and apps launch instantaneously. I hand the laptop to random people and they are always amazed and how well it works. This is on a decently fast Dell XPS laptop but nothing insane. All the crap has been stripped out.
Seriously recommend trying it out - more responsive than any OS I have ever used - even a lean running Ubuntu or OSX
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