Flash Player Active X is already included in IE10 in Windows 8, and allows you to update through Windows Update in the setting. If the Flash games, video, or audio don’t work within web browser, you need to downlaod or upgrade to Latest Version of Adobe Flash Player on your Surface tablet.
* If you want to check out what version you currently have, click the links.
* For Windows 8 plugin based browsers like Firefox and Chrome, Adobe Flash Player WHQL (Version: 11.4.402.287) is working fine on both of Windows 8 32-bit and 64-bit.
The Download Page.