Hi:
Below is the link to the latest wireless driver for the Intel card in your PC.
The second file on the list is for W7 x64.
This would be the latest bluetooth driver,,,the second file is for W7 x64
If these fail to resolve the problem, I suggest you start a new thread, because I do not know anything about troubleshooting wireless connections and will not be able to assist you any further with this problem.