Disclaimer: This wiki is not official Dell documentation but is compiled by Philip Yip (Dell Community Rockstar natakuc4).
Windows 8 Drivers - Direct Links
Windows 7 Drivers - Direct Links
The driver sets marked as unofficial are generally taken from other Dell systems or drivers from earlier version of Windows available for that model. I have helped others install Windows 7 or Windows 8 on these models and generally got feedback on what drivers work and what don't. It is not guaranteed to work however and likely Dell software support won't support such setups.
laptops (XP, 7)
desktops (XP, 7)
Note the laptops and desktop wikies are in the form of rough notes, its being updated to the above. Some of the drivers are official for example listed on the Dell ftp website but not on the Dell Drivers and Downloads Page and others are taken from other systems with similar components that may actually share drivers for other versions of Windows. Thus the driver sets listed should work but are not guaranteed to work. If they do work or fail to work, for you leave a comment.
Please add your vote to this IdeaStorm Idea and leave a comment, the more votes Dell get the more likely they are to consider supporting more systems. I initially wrote just XPS/Alienware but you can add more information in the comments (on IdeaStorm).
• Windows 8 OEM .iso Download Link
• Windows XP, Vista, 7 OEM .iso Download Link
• Request Reinstallation DVD form [Rest of the World]
Windows 7 Availability
• Sell systems with a Windows 8 Professional license and Downgrade Rights to Windows 7 Professional Preinstalled with the ability to have both media
Supported Systems for Windows 8
• Increase Windows 8 BIOS Updates/Driver Availability on XPS/Alienware Systems
Windows 8 Start Menu
• Dell8 - Work Again with StarDock to Give Windows 8 a Proper Start Menu
Drivers and Downloads Improvements
• Driver ID Database for all Dell Drivers and Operating Systems
• Drivers and Downloads Page: Suggested Upgrades
• More of the "Dell FTP"/"Drivers and Downloads" and less of "My Dell Downloads"
• Digita Persona - Windows 8 Driver available from Drivers and Downloads
• Dell Touchpad Windows 8 Gesture Universal Driver
• Dell Wireless/Broadcom Universal Driver
• One Dell Quickset for All Dell Systems
• Less Cryptic Information under System Configuration
• Dell System Configuration Listing Not Helpful