Compatibility could be due to problems with software or hardware. Follow these steps to troubleshoot your compatibility issues.
If you are using Windows 8 Developer, Consumer or Release Previews, please perform either a clean install or upgrade to the RTM release of Windows 8 Version 6.2 (Build 9200). Windows 8.1 released to the public and if you are running Windows 8, it is strongly recommended to upgrade to Windows 8.1 through Windows Store.
During Windows 8 setup, If you receive an error which indicates that your CPU is not compatible, you must modify the BIOS setting to enable No eXecute bit or disable eXecute . To access your BIOS settings, you should refer to your PC manufacturer’s technical reference. Common BIOS access keys include ESC, F1, F11, F12, etc to boot into many PC BIOS settings. This setting should be located under the Security\Advance tab on most BIOS settings under any of the following parameters such as:
If you are not sure about change the BIOS, it is recommended to visit your PC manufacturer’s website support or forum and post your question along with model of your PC and ask about enable this setting. In some cases, you might need to update your BIOS.