Microsoft insists that current Windows 7 drivers will work on Windows 8. Nevertheless, a user will be presented with a message saying that the software has not been digitally signed for Windows 8 (this is true for every device maker that doesn't yet have a Windows 8 driver). Our advice? Take Microsoft's Windows 8 reverse-compatibility claims with a grain of salt.
The upgrade from Windows 7 to Windows 8 will be smoother than the one many users experienced during the Vista debacle. But no OS upgrade is trouble-free for everyone.
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