I purchased a Satellite L850-11Q earlier this month.
Having a Windows 7 Prof. 64-bit service pack 1 - license (and Win7 Home comes pre-installed), I formated everything (including the recovery partition, because I tend to make my own backups).
Of course I downloaded all available 64-bit drivers beforehand, but after installing everything I found that one driver is still missing!
I searched on the "sister"- notebook L855 page for compatible drivers, but could not find any (reason: not all drivers can be found on the L850-site, for example the Bluetooth stack driver - I had three unknown devices after installing all L850-drivers, two of these could be found on the L855-site).
My problem is, that there is still one unknown device in the windows device-manager.
Aida64 (a system monitoring/information,etc.-program) identified the divice to be the
thank you very much for your help, but the driver you linked to did not solve the problem.
Upon further investigation, it is the same one that was already installed (that is why a second install process was so fast - the drivers were already there).
I guess I just have to wait, until either Toshiba or Intel provide some drivers.