I have both Windows XP and Ubuntu installed.

I want to set Ubuntu as my default system when boot the machine.

I don't want to press Down+Enter every time.

I am using Wubi.

Original boot.ini:

[boot loader]

timeout=30

default=multi(0)disk(0)rdisk(0)partition(1)WINDOWS

[operating systems]

multi(0)disk(0)rdisk(0)partition(1)WINDOWS="Microsoft Windows XP Professional" /noexecute=optin /fastdetect

C:wubildr.mbr = "Ubuntu"

Modified boot.ini:

[boot loader]

timeout=30

default=C:wubildr.mbr

[operating systems]

C:wubildr.mbr = "Ubuntu"

multi(0)disk(0)rdisk(0)partition(1)WINDOWS="Microsoft Windows XP Professional" /noexecute=optin /fastdetect

But nothing changed.