This message was posted on behalf of Intel Corporation
Thank you for joining the community
Let me share with you that is recommended to use the drivers for the manufacturer due to those have been tested to work on your system, you can try to present this situation to them for better assistance with their driver,
Another option is to try a clean OS installation, before doing this option try the manufacturer assistance, and don't forget back up the information,
thanks for your reply, but with drivers from the manufacturer I have the issue. Same thing with latest drivers from the Intel website, so I wanted to know if anyone ever had this problem and if he had found the solution.
Finally, I did multiple clean OS installs but the problem is always here.
I found something interesting here : *Solved* I Need help - Win 7 - losing drivers after shut down/reboot - Overclock.net
Apparently it's one of the Update for Windows 7 x64-based Systems from October 2010 that's at issue. My system is 32 bit, but maybe one of the Update for Windows 7 x86-based Systems can be faulty. So I'll try installing a no SP1 Windows 7...