I tried to install Mandrake 8.0 on a friend's computer using lnx4win. After the computer rebooted, the grub screen came on with the 4 options:Linux, failsafe, Windows, and floppy. But when I click on Linux I got an error so now I am tring to delete it totally out of the computer and just have Windows. So I went under the c drive in Windows and clicked on the lnx4win folder and clicked delete. When the computer rebooted, the grub screen was no longer there with the 4 options which is good, but a grub prompt came up and I could't get back on Windows. So what do I need to do to get that totally deleted and just have the computer boot up to WIndows? Thanks for your help.

Get yourself a bootable msdos disk that has the msdos command fdisk on it, then boot up and run the command fdisk /mbr . You should now be able to boot into windows.