Lenovo ThinkPad Edge E520 Wireless-adapter uncompatible with Windows8?

I have a Lenovo ThinkPad Egde E520 (1143) and I have trouble using my Wireless adapter under Win8 64-Bit. On Ubuntu 12.04. 64-bit I have no trouble. The problem is that I almost always only get a limited concectivity to my network and sporadically I get a full connection. Also my computer presents problems while installing the Bluetooth driver.

Could it be that WIN8 64-bit and my wireless-adapter are not compatible?

Solution 1:

So, as @Nerdwaller suggested, I decided to install the Lenovo oficial drivers for a T530 released Oct. 2012 downloaded from:

http://support.lenovo.com

Today, 3 weeks after the installation the problem has not appeard.
My wireless is working great!

Thank you for the hint, Nerdwaller!