Bluetooth of Ideacentre B320 is missing

Hello anyone
Now, I used Ideacentre B320 all in one around 2 month. I need to connected and pairing with a bluetooth head-set. However, I did not found the bluetooth icon from anywhere in my computer. But, my bluetooth mouse and keyboard still working. Moreover, my bluetooth light at left below of monitor still lighting.
I try to solving this problem by uninstall and reinstall the bluetooth driver again. The driver show that can not install complete. I try many times by another driver but unsuccess.
I would like to ask anyone to help me fix my problem. Here is my last hope. Please, helｐ me.
Thank you very much

I have no driver CD with my computer. But, I download from internet for "blustooth driver for window 7 64 bit" and "bluetooth driver for Ideacentre b320". Both of them unsuccess installation. Then, I using automatic download via automatic download center (lenevo software). It is also not work.
What is your suggestion next?
Thank you everyone for your time.

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hey Rustybug,
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WW Social Media
Important Note: If you need help, post your question in the forum, and include your system type, model number and OS. Do not post your serial number.
Did someone help you today? Press the star on the left to thank them with a Kudo!
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"!
Follow @LenovoForums on Twitter!
Have you checked out the Community Knowledgebase yet?!
How to send a private message? --> Check out this article.

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Bluetooth of Ideacentre B320 is missing

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