Guys, I have 2 hard disks. The first one is partitioned into C:, E:, & H:. The second is partitioned into D: & F:. I had Windows 98se installed on C: drive. Later I formatted D: drive and installed Windows XP Professional. Both were working fine on dual booting. Today, I suddenly couldn't boot into windows at all and had to re-install Windows 98se on C: drive. I didn't touch the Windows XP on the D: drive. I made a fresh boot.ini file in the C: drive that reads as follws : [boot loader] timeout=30 default=multi(0)disk(0)rdisk(1)partition(1)\WINDOWS [operating systems] multi(0)disk(0)rdisk(1)partition(1)\WINDOWS="Microsoft Windows XP Professional" /noexecute=optin /fastdetect C:\="Microsoft Windows 98 Second Edition" But I'm unable to get the dual boot startup screen. Is it the boot.ini file that requires any changes ??? Again, Windows 98se is on C: and XP is on D:. Both are the first partitions of the Primary and Secondary hard disks respectively. I'd be grateful for any help.............. Thanks.... !!!