1.if you installed this two OS in one HD, goto step 3
2.if you have installed this two OS one two seperate HD goto step 4
3.start-->run-->command-->cd \-->attrib -h -s boot.ini-->edit boot.ini
-->erase the line which includes 'win98' -->save and exit-->attrib +h +s boot.ini-->delete windows directory(don't worry,win2000 dir is winnt)
4. start-->run-->command-->cd \-->attrib -h -s boot.ini-->edit boot.ini
-->erase the line which includes 'win98'-->format that hardisk or just delete the windows directory.