I know this is a little late on the scene but here's a direct link to the drivers from the SteelSeries downloads page for Windows 7 64 bit drivers; If you need 32 bit drivers they are here; These drivers are directly from their downloads page under the Z-Engine for Merc, Merc Stealth, Zboard, and Fang section on the bottom right-hand side of the page. Once you have them archive them to a thumb drive or even a CDROM to make sure you have them again should you ever need to reload. Thanks dude, you really helped me alot! Lenovo Sl510 Drivers Windows 10 here. After few hours spent searching for the drivers I found your post. I Downloaded the drivers you suggested - my keyboard works perfectly now. Thank you once again!

Microsoft Shared Fax Driver Windows 10. After the recent Windows 10 Cumulative update KB4034674 my Merc Stealth Keyboard drivers has stopped working. Specifically the Alpham164.sys is not being activate.

After the recent Windows 10 Cumulative update KB4034674 my Merc Stealth Keyboard drivers has stopped working. Specifically the Alpham164.sys is not being activate/trusted in Device Manager. Uninstalling the update allowed it to start working again. I can only push windows updates so long. Uninstalling and reinstalling the driver software did not work. Touchpad Driver For Windows 10 Hp on this page. SteelSeries.com no longer supports the Merc Stealth, so there is no Windows 10 specific driver but it has worked fine until this patch. How can I get Windows 10 to trust/allow Alpham164.sys?