is it virus?

[Windows 11]

Hi, I updated Windows last night, the update took about half an hour, which I found strange (look suspicious for me)After the update, I noticed that it created a windows.old folder, which is only created just when you reinstalling windows.The new windows folder seems strange to me, is it some kind of trojan?I didn't download anything or go to any fake sites, my antivirus is mcafee.Thank you for the replyAhoj, včera večer jsem aktualizoval windows, aktualizace trvala přibližně půl hodiny což mi připadalo zvláštní.Po aktualizaci jsem si všiml že se mi vytvořila složka windows.old která se vytvoř

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