I have installed Windows 7, Windows 8 CP and Windows 8 Release Preview in my Sony Vaio VPCZ21S9E/B and drivers for all devices (SIM, Fingerprint, all function keys) worked perfectly.

I installed Windows 8 RTM and none of these drivers work:

- Fingerprint sensor

- Huawei EM680 w/Gobi Technology

Is there a way to get the right driver and uninstall all previous ones? Where do all these drivers get installed?

Thank you,

Nikos