[SOLVED] Can't enable compatibility support module on an Asus Prime H410M-E

[javier2409]

Hello everyone. I'm trying to enable compatibility support module from on my asus prime h410m-e motherboard so I can boot from a MBR partitioned drive. But when I find the "Launch CSM" option it is greyed out. I've read that you need to disable secure boot to enable that option.
The thing is that there isn't any option to disable it right away, this is what I've tried:

• Choose "Other OS" under "OS Type"
• Delete PK only (platform key)
• Delete all secure boot keys
• Disable fast boot
• Set an admin password for the bios

But nothing, the Launch CSM option is still greyed out. And at this point I don't even know if secure boot is disabled or not.

Any help is appreciated 🙂

 

[javier2409]

I updated the bios to the latest version (1401) and now the Launch CSM option is available.