I have a new Sony z. After completing installation and while updating files, I noticed a yellow warning notice associated with my N6200 wireless. This warning popped up every tme I tried to connect wirelessly even though a connection was made. I reviewed the event viewer and decided to restore to an earlier point. The computer would not restore and indicated it was probably due to an anti-virus program. It also reported a 0x800070005 error. I turned off the anti-virus program (Noton) but it still would not restore. I tried to restore in safemode and it worked. Eventually I reformatted and reinstalled the system. Both problem reoccured. The interesting thing is that I have a friend with a new Lenovo W510. He has the exact same problem when it comes to restore. He does not have the warning notice. My computer uses an I5-540 while the Lenovo uses an i9-920 (2.0). I have an N6200 wireless he has an N6300. We both use Norton trial. Both systems have discrete graphics and can be toggled. Any idea(s) what the problem is and how it can be resolved. The Sony service department seems lost. It looks to me like an endemic problem associated with Windows 7 and Intel?