Satellite L750 system hangs after disconnecting the WLan

I bought Satellite L750 series laptop I have connected Wifi. If I disconnect the Wifi system get hooked. I can't do anything to that. I've updated the driver software and I checked all the possibilities that my knowledge.

> if I disconnect Wifi system and then get hooked.

I assume you are using Fn + F8 to toggle the wifi.
Right?
Have you tried to restore the system to verify if there is a system problem?
I think you should do and need to retrieve the laptop using the HDD recovery procedure
Turn on the device, press F8, choose repair my computer, choose HARD drive recovery and follow the instructions on the screen, then you will get the system with the factory settings.
Then test the WLan.

Tags: Toshiba

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