Right click MYComputer go to properties. Go to ADVANCED tab, go to Startup and Recovery click SETTINGS and click on EDIT.

BE CAREFUL and only remove the line you do not want to see.

Leave the one that works.

Mine looks like this


[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" /fastdetect