I use NORCO-630V industrial CPU card, installed in Windows98, not always to install, what is the The reason?

A: You did not tell the exact reason, we can only give you a list of the problem may be caused by a variety of circumstances:
1, the hard disk. To use Windows98 boot disk or other high-disk version of the tool to re-partition the hard disk, formatted, and then re-install
  Windows98 operating system;
2, memory. At the time of installation, the system will be "illegal" automatic, please try to replace a memory;
3, is also possible that the BIOS of Virus Warning is set to "Enable", please read "Disable";