First right click on my computer --> properties click the advanced tab Under the Startup and Recovery sub heading, click settings Under System Startup, click Edit Under the [Operating Systems] tag, is where your boot selection screen is. Each line is for a different OS Simply delete all of them, except the first one which looks like this multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP Professional" /fastdetect Save the file and you're done!