[ubuntu] Wireless problem after 12.04 upgrade Lenovo G560 dual boot

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http://ubuntuforums.org – Hi, I upgraded Ubuntu to 12.04 and it subsequently disabled the wireless on windows 7. I have a dual boot set up on a lenovo G560 with a Broadcom 802.11 wireless card. The wireless works fine in ubuntu, but when I boot Windows 7 it won't connect. I checked the network devices in windows and everything seems to be fine except for the mircosoft virtual wifi miniport ( I also install the updated driver for this device). Any ideas on what the issue could be? (Hardware)