AOpen DE6200 Series User Manual page 18

4.2 BIOS flash tool
If you like to flash BIOS under Windows 7 OS, please install windows Hot-Fix
KB3033929-x64 first, then can use windows BIOS flash tool to flash BIOS under
windows 7.
https://www.microsoft.com/en-us/download/details.aspx?id=46148
4.3 Windows 7 x64 installation note
If you like to install Windows 7 x64 at DE6200, please configure the BIOS to be able to
function with Windows 7 first!
Please press F2 or Del to enter BIOS menu, and modify the BIOS items setting as below,
1. Change the setting of "Boot option filter" to "UEFI and Legacy"
Advanced >> CSM Configuration >> CSM Support >> Enabled
Boot option filter >> UEFI and Legacy
2. Change the setting of "Video" to "Legacy"
Advanced >> CSM Configuration >> CSM Support >> Enabled
Video >> Legacy
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