We don't support changing the OS on a laptop, since there can be some components that aren't compatible with the new Operating System. First, you'll have to remove the existing Catalyst software, since the Win7 and Win8 suites are incompatible. Once it has been removed, check your laptop manufacturer's site to see if they have Win8 drivers available. If not, you can always try our drivers (use the verification tool at http://support.amd.com/us/gpudownload/windows/Pages/radeonmob_win7-64.aspx ) , but this might not be compatible with your laptop.
Either way, it's best to stick with what the laptop provider supports and provides. Our drivers may work, but they also may not, in which case you will have to revert back to Win7 (since your laptop is likely 3-4yrs old with that GPU, certain hardware might not be Win8-compatible)
AMD Customer Care
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