The other day i had gotten a computer . it was used, it had belonged to a friend of my dad. i need one to atleast type reports for school.anyways, he had a lot of junk on itso a began deleting file from left to right. well it was getting late so i shut it down, the next day i turned it on to finish it woul just say " Invalid system disk please insert and press any key. i dont know what happend. the day before i could use it but now it wont get past that screen . i think i deleted something i wasnt sopposed too.

Boot from 98 bootdisk that's the same version as is on the computer (first or second edition). At the a:\> prompt type: sys c: and enter. When it's done, reboot. If it doesn't boot correctly you'll probably need to reinstall windows over the existing version.

Reboot, that is, without using the floppy disk.