pc experts come

I restarted my laptop because my browser was acting up. When it finished, the following happened to my laptop:

• cannot find any wifi (it can’t even turn on airplane mode)
• doesn’t have ANY sound (incoming or outgoing)
• default refresh rate went from 144hz to 64 hz
• brightness cannot be changed.

I haven’t downloaded any bad files, my VPN is updated, and i do a scan regularly. What the hell is going on and how do i fix it? (I mostly care about the first 3)

Update drivers or you put your laptop on powersaving mode

reinstall windows

normal day with windows

Oil up

all 4 sound like an issue with drivers. use driver booster or any other driver finder software and update the drivers

for wifi, u can just network reset

windows 11 just buggy. go to device manager and try disable and enable again those devices.
also check power saving mode. do windows update