FantasyAcquiesce

If you don't want Windows xp, then 2000 is your only other choice if not Linux http://support.asus.com/download.aspx?SLanguage=en&m=K8V-VM&os=17 (Offical Driver page for ASUS K8V drivers) I don't really understand why you would choose 2000 though. The only reasons I could really think of why you would choose W2k is less ram usage or software that doesn't work with xp. In my own personal experience setting up W2k's drivers were extremely difficult and time consuming and it lacks Zero Network Configuration, I couldn't even get the wireless internet working on the laptop. When I installed xp on the EXACT same laptop, it was a breeze to get everything working since lots of software didn't need to be installed (ex: Windows Installer, Codec's, etc). To top it all off, Windows xp still works with most modern software and you don't need to worry about web pages rendering incorrectly. W2k is still very usable I'm aware, if you do choose W2k I would recommend installing the unofficial service pack 5 and unofficial updates to get latest software working.

Windows 2000 is probably the best choice for your laptop, but why not consider Windows xp since you have plenty of ram? Windows NT 4.0 doesn't support too many programs, especially in terms of games but I've never tried it. The only reason I could think of choosing 9x over W2K is the real time DOS, but drivers are likely to become an issue if you install a 9x operating system. I don't think your chipset even supports Windows 98 and without patches you can only use 1gb of ram, 512mb in Win95. Sadly Win9x lacks NTFS format, so you cannot have files over 4gb. TL; DR short summary of why Windows 2000 is a better choice -Drivers are avaliable (At least for your graphics card, not sure about the rest) -Can see all 4gb of ram -Two cores can be seen -More stable/reliable than 9x (Or at least that's what they say) -NTFS format which allows files to be more than 4gb -There are no drivers avaliable for Windows 95 -Windows NT 4.0 doesn't have many programs and is limited for games (At least I've read somewhere) Note: If you're going to attempt wireless internet connection (LAN) you're gonna be in for a nasty surprise. Windows 2000 lacks zero network configuration. Some computers/laptops will require a few more installations/updates for W2k in order for some drivers like Audio to work (Personal experience)