Yep, happened to me after a Windows update.  Now, I've shut down auto updates and am trying the "Samantha" reset method.

More cursing to come if that doesn't work. You would hope Intel will get an update to get that bug out.

@Atif's solution appeared to work for me on an HP Pavilion dv6. Thanks!

Thanks Samantha! It's worked for me too on Pavilion dv6 (3250us)! I hope don't have problem again with! Now I can use my mouse wifi! thanks a lot!