Many users get problem when trying to install win 9x on a modern computer with sata only for harddisks and optical media. It should be mentioned that for nostalgia and perhaps a bit more, it's easy to get around this problem:
You can for example selectively bypass the harddisk driver installation by putting a cut/"blank" version of the file mshdc.inf (contained in precopy2.cab in my case) in the win98-folder of your cd or other install media. I chose to remove everything after the line [Manufacturer] in mshdc.inf + an extra blank line if you want to be sure.
Maybe you can do it even simpler in some other way like using setup options (sure others here know better about this).