Bluetooth and wireless device not working

Hi. My bluetooth is not appearing in my pc settings and has disappeared from device manager after i updated windows 8.1 recently. Also my wifi is not working. In pc settings, then network and in the flight mode section it says "we couldn't find wireless devices on this pc" under wireless devices. i tried updating the network adapter in device manager but in vain. Please help me. My laptop is hp 250 g3 core i5

Hi rohitraj_iit,
1. Check in the BIOS whether it's enabled. 
2. Reinstall Hotkey features, restart your R400, press Fn+F5 -> Radio on the Bluetooth, thereafter reinstall the Bluetooth driver.
Let us know how it goes.
Maliha (I don't work for lenovo)
ThinkPads:- T400[Win 7], T60[Win 7], IBM 240[Win XP]
IdeaPad: U350
Apple:- Macbook Air [Snow Leopard]
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