Troubleshooting

Windows

-- Windows XP--

Windows XP Tweaks and Tips
http://www.unique-city.com/

Windows XP Network Troubleshooting
http://www.practicallynetworked.com
/sharing/troubleshoot/

-- Windows 2000 --

Troubleshooting Windows 2000
Nicely organized, still a collection of articles
http://www.labmice.net/troubleshooting/

-- Windows 95/98 --

Troubleshooting and Resource Guide for Windows 95/98/ Millennium
A little outdated but nicely setup for you to "borrow" from.
http://www.toejumper.net/

Windows 98 Troubleshooting
Again, a little dated. A collection of specific articles - some still apply
http://www.windows-help.net/windows98/ttips-idx-nf.shtml