You can't REM the line out, it's only for batch files. Basically, backup ur boot.ini file somewhere. Under [boot loader] If there's a "timeout" option set it to 5. If there isn't make a line [boot loader] timeout=5 Reboot. Don't click anything. Let the countdown go to zero. If the correct windows starts, you can set the timeout to 0 so it loads instantly or you can delete the second line. e.g. if it was multi(0)disk(1)rdisk(0)partition(1)\WINDOWS="Windows XP Professional" /fastdetect multi(0)disk(0)rdisk(0)partition(2)\WINNT="Win XP Professional" /fastdetect You'd delete the line multi(0)disk(0)rdisk(0)partition(2)\WINNT="Win XP Professional" /fastdetect If the wrong windows loads, ie your pc doesn't boot after setting the timeout to 5, delete the first line (ie multi(0)disk(1)rdisk(0)partition(1)\WINDOWS="Windows XP Professional" /fastdetect and set the timeout to zero. Hope u understood.