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D
Seems that you are not the only one:
https://answers.ea.com/t5/Technical-Issues-PC/Sims-4-not-working-on-new-pc-windows-10/td-p/6872536
https://answers.ea.com/t5/Technical-Issues-PC/Trouble-opening-the-game/td-p/7264138
https://www.reddit.com/r/techsupport/comments/90i2ys/pc_pleb_having_trouble_uninstalling_nahimic_and/