Open msdos.sys with notepad after changing the "Read only" attribute.

If you enable this setting, it requires that you also have the "BootKeys=1" line as well.

Use the table below to change the setting as you see fit.

Optionally, you can add the line "BootMenuDelay=10" to create a timeout for the default setting.

The number can be changed to suit your needs.

Reboot required

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