What do you mean by windows 98 crashed?
If it is crahed then you need to reinstall it again.
What is active partition?That part of the hard disk containing the operating system to be loaded when you start or restart the computer. You can install 2 different operating systems ( perhaps DOS and OS/2) on your hard disk, but each must be in its own separate area, or partition. Only one partition can be active at any given time, and to change from the DOS to the non-DOS partition, you may have to use the DOS FDISK command.
So you see, if there is no operating system, then it will be unable to find any active partition. And an active partition (or an operating system) is required to boot a computer without the system disk.
Go to Fdisk and do it again.
When it ask for which drive to "mark as active" (do that). it will obviously be your c drive.
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