What can't you do on a Windows PC?
Have a week go by without a 20 minute update.
Have a day go by without a crash or 10.
Have a hour go by without some nonsensical technical pop up.
No find decades old UI elements they still have not changed since windows NT/95
Change a system setting without going insane trying to find it in either of the 2 UI metaphors ( metro / classic ) and then the dozens of buried tabs and modal pop up.
Generally be happy and have a nice time using your computer at all.