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I have a problem using my phone as modem in windows 7 . In bluetooth personal area netwrok devices it say my phone needs trouble shooting . Right click properties and it says no driver was installed for thid device . No update driver option available too. What to do ?
What you trying to do ?
You want to make your device a modem to connect internet or need to pair device with computer Bluetooth ?
Try right clicking the phone under bluetooth personal network area devices and select the option Connect with -> Connection point (or similar). Windows 7 should have the drivers needed for PAN if you're using the standard bluetooth in Windows.
Open Device Manager in Computer and check the status for your device...
I want to shame my pc internet connection with phone o.O . Is that possible ? . Or i just want to add it to my netwrok :(. I tried right clicking and connected using access point . It says
Where would be my device located in device manager ?
It should be named Xperia P.
For using your computer as modem u need to install a software named connectify ...
If you need to make your phone a modem
Settings > Tethering & Portable hotspot > ( tick on Portable WiFi Hotspot
MY wifi is dead . I was told that i can use bluetooth to do same job . btw when i tick that hotsopot thing it says tethering error 
If you make a wifi connection from your laptop I am not sure you will be able to connect from your phone.Use connectify and see.