Why did my desktop wifi option disappear

[Microsoft Windows]

Left my pc perfectly working, came back turned it on and no wifi. Also no option for wifi in the settings, network just shows hotspot and airplane mod.I assume this is becuase windows isn't detectinga wifi device. I looked and saw i had a windows update today, which I seem to be unable to uninstall.I guess I can factory reset but I don't want that.Now I dont know how I will be able to revert my update without internet, or install the new hotfix?

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