Solution:

This is the bug of SIS 5571 chipset. The patch file should be installed before setting up Windows 98. Please follow the instruction to install the patch file, and then set up Windows 98. (1) Download 571w98.exe file to some directory in your hard disk or to a floppy disk. (2) Decompress the 571w98.exe file. (3) Run sis98.exe in this directory. (4) Restart the system. (5) Install Windows 98. (6) Double click DOS Pompt Icon. In the root directory C:\ type "edit autoexec.bat". Remove the line " c:\sis98\sisfx.exe " in your Autoexec.bat file after Windows 98 is completely installed.