Dear all, This is my first post here. As English is not my native language, please forgive me in case anything wrong in English. Apple has officially dropped the support for Win XP for Boot Camp on the 2010 MacBook Air. However, a lot of users would like to use Win XP as this saved much more space than running Win 7. A lot of users would like to use XP instead. Here is an incomplete guide on running XP on these new MBA. Before we starting doing that, you have to know the limitations at the moment: 1. Brightness control is not working. I write this guide and hope other members can make the brightness work. 2. Never, never use softwares like Parallels / Fusion to call this XP partition. This will result the boot looping and you have to restart the whole installation again. 3. After your successful installation, do backup the partition with Winclone. This saves you time in future. Let's see the tools required: 1. Win XP SP 2 installation disc in CD. 2. An USB CD ROM / DVD Rom. 3. WiFi Internet connection. 4. Boot Camp 3.0 (you should find somewhere else) 5. Winclone software (freeware) Some people considered the Boot Camp drivers for 13" MBP 2010 could work as it contains drivers for Nividia 320M drivers. However, this will end up "Blue Screen" during installation process. Here is the installation process 1. Use Bootcamp to shrink the Mac partition and create an Win XP partition. Please note that your Win XP installation cannot work except using Bootcamp. Afterwards, you can simple use Winclone to backup the successful installation and do whatever you like. I will create the partition at minimum (20Gb). 2. Download the drivers for Boot Camp for Win 7. You will find it useful in future. 3. Install windows XP SP 2 as usual. I format the partition as NTFS. 4. After the install, you will find the XP at strange resolution scale and strange movement on mouse. That's normal. 5. Install Boot Camp 3.0 for XP and restart. This will make your WiFi works. 6. With WiFi working, go to system update. Though you find the Nividia driver there. Don't install at the moment. Do all the updates like SP 3 and other updates as you will. This will require several reboots. Do as usual. 7. After you have done all other updates, install Nividia driver from Windows Update. This will result for correct resolution after reboot. 8. Go to Start -> Control Panel -> System -> Hardware -> Hardware manager. You will see at lot of hardware with ! mark. These are the drivers missing. 9. Get back the files for Boot Camp for Win 7 for your MBA, go to \Boot Camp\Drivers directory. You can see all the folders. Though Apple tells you that the drivers only works on Win 7 but most of them works on your XP with the 32-bit version. 10. Some of drivers you have to install: \Apple\AppleBluetoothBroadcomInstaller.exe \Apple\AppleDisplayInstaller.exe \Apple\AppleiSightInstaller.exe \Apple\AppleKeyboardInstaller.exe \Apple\AppleMultiTouchTrackPadInstaller.exe \Apple\AppleNullDriver.exe \Apple\AppleODDInstaller.exe \Broadcom\BroadcomEthernet32.exe \Cirrus\CirrusAudio32.exe \Marvell\MarvellInstaller.exe Afterwards, you will clear all the ! marks. It sounds not for the beginners. That's true. As there is a risk for every step. After you install Win XP SP 2 successfully. I highly recommend you to do backup before each step with Winclone. Of course, it is time consuming but in case you have any problem, you can just restore to the last step without further pain. Hope anyone around can assist in fixing the Brightness issue. Thanks!