If you are installing the WIN98 system, you can now create a folder with the MD WIN98 command on drive D or other non-system drives on the hard disk. Then find the directory where the WIN98 files are placed on your CD, and use COPY. D:\WIN98 to copy the files to the hard disk. Then you need to find the SMARTDRV file, which is generally placed in TOOLS\oldmsdos. Then directly enter the command: smartdrv, (this will speed up the installation speed). Then go to the D:\WIN98 directory, and enter the command: SETUP /IS /IE /IV /IM to start the installation. (Note: If there is no floppy drive on your computer, you need to turn off the floppy drive in the BIOS, otherwise a failure that cannot continue will occur during the installation) If you are installing WIN2000 or XP, it is recommended to directly use the CD to boot for installation.