Network adapter problem

dani354688

Prominent
Dec 2, 2017
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Hey guys. I'm helping my cousin with her laptop and she asked me to install Win7 on it cause Win10 didn't work really smoothly. So that's what I did, downgraded.
But after it was done, trouble began. The only network adapters in Device Manager are Bluetooth, so I couldn't connect it to either ethernet or Wi-Fi . I tried to get a Lenovo system updater from their support section but it didn't work without internet (ironically). Then I tried some Realtek adapter (can't remember the name) but that didn't work either. I'm really in need of some help. The laptop is a Lenovo B50-45.
 
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