Install 98(se) is almost the same as I said earlier.
BUT !!!!!!
- You need to format first.
- After installing 98, you first need to install all the motherboard drivers.
- Then install all other drivers that 98 didn't provided. (eg soundcard, videocard, modem etc)
- Install a firewall (if you haven't got a hardware one)
- Install AV software (Avast)
(you have to do the above while you are not connected to any network!)
- Visit Windows update and install all security patches/update.
- Only now you can go install applications and/or set data back from a backup