Hi screen solution bugged, i cant undone it
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Type Regedit.exe search bar.
Once opened navigate to HKEY-USERS----->What Ever Number you see like S-X-XX-XXXXXX-XXXXXX----------->Software---->LAGS------>RingManSpiritHunt
Look for entries like Resolution Height and Resolution Width. Should be four entries in total. Delete all four and game set it's resolution to default.