The PC revolution started with the idea that you can own a computer. Now, by your operating system choice, you don't own it nor what it runs, you don't own the computer, and you don't own anymore the data that used to belong to you that you put there. And with your data it goes along you, eventually.
And if you decide that you must install that operating system because it runs a particular game or app, think all you are sacrificing for that as an implicit extra cost.
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