Should the issue persist even after updating windows, please disable Driver Signature Enforcement by hitting
F8 key during boot and then select
Disable Driver Signature Enforcement from the
Advanced Boot Options
Try that Andrew, i never had this issue though with win 7 ultimate 64bit and 32bit and even win 7 home premium 32bit with the 900nc
running on our current notebook's being used for for ap work.
So just tap f8 on and off on computer startup and you will get this menu to appear in the image select
Disable Driver Signature Enforcement
best of luck man cause i'am running out of suggestions after this lol