In researching what will be one of many stories on Windows 7 I'm sure I'll write over the next few months, I've been installing the beta version of Windows 7 (Build 7000) on just about any PC I can get my hands on. One of my test systems is an Eee PC 900.

Just to make sure we're all on the same page here, the pertinent specifications of the Eee PC 900 are:

Display: 8.9" Display running at 1024 x 600
CPU: Intel® Celeron M353 clocked at 900MHz
Networking: WLAN Built-in 802.11b/g and RJ45 10/100 Mbps
RAM: 1GB of DDR II
Storage: 4GB and 8GB disks and SD/MMC slot
Webcam: 1.3MP

As you can tell, this is not going to be a Windows powerhouse. In fact, the Windows Experience Index (a measure of how well a system will run Windows 7) gives a score of just 1.0 - the lowest score. It's worth noting that this score is a reflection of the system's "weakest" component. in the Eee PC 900's case the integrated graphics card pulled the score down.

The Eee PC actually fails to meet one of Windows 7's minimum requirements - available disk space. To install Windows 7 you'll need 9GB of free, contiguous disk space. The Eee PC 900 has a total of 12GB but that's spilt into two separate disks of 4GB and 8BG. However, I was still able to complete the installation with about 1GB of space left on the larger disk. The installation did fail on the first attempt but when I started it over it was able to complete. I had the same experience on another system so it seems that the installer is smart enough to skip over problematic stages.

Once Windows 7 was installed (about an hour using an external DVD drive), it booted up perfectly. It's worth noting that Microsoft has really managed to get the installation process right. Other than some localisation information, I was able to walk away from the installation and come back once it had completed. There weren't any "Click to Restart" dialogs or other such nonsense.

I wasn't all that surprised to find that the Eee PC 900's display was limited to plain VGA after the installation. Clearly, Microsoft hasn't included every possible hardware driver. However, on the Eee and other systems, i;ve found that Windows Vista and XP drivers work just fine. The only potential "gotcha" is that the driver installers provided by manufacturers may not work. in that case, run them in compatibility mode for XP or Vista and they should be fine. I ran the Eee's driver installer in XP compatibility mode and it worked well. You won't get the full Aero experience but I'm not sure that it's worth the overhead in any case.

Using Windows 7 on the Eee PC was surprisingly good. I had low expectations but found that even with some antivirus software installed the system was reasonably responsive. However, I'd strongly suggest that anyone using Windows 7 on such an underpowered system go into the Performance Setting and manage those settings yourself rather than letting Windows work it out for you. I disabled almost every visual enhancement other than "Use visual styles on windows and buttons". This made a significant improvement to the Eee PC's overall zippiness.

Wireless networking worked without any problems although my impression is that wireless range is a little weaker under Windows 7 than XP or Ubuntu. As radio strength can be controlled by software it may be that a driver update will fix this. However, the difference wasn't huge and certainly didn't impact my testing. It was just that places that had a solid five bars of signal now drifted between four and five bars.

I've not been able to get the webcam working yet. It needs a driver but I can't find my Eee PC CD at the moment and I could find the driver on the Asus website. I suspect that once I find a driver it'll be fine. Perhaps someone's sorted that out. If you have, leave me a comment or use Twitter to let me know.

Finally, I've noticed that the power management side of things still needs some work and that the suspend/resume functionality is a little broken. It's not a showstopper for me as the Eee PC isn't a main system for me (my MacBook Air is my principal mobile computer).

What I'd like to see in a future release of Windows 7 is a "netbook" installation. I know that would add a step to the installation process but being able to leave off stuff like the games and some of the accessories would slim the installation back leaving more hard disk free. Also, I suspect that I'll be able to eek out further performance gains by playing with the service that launch automatically. I'm not too fussed about the driver issues - this is Beta 1 so it's not surprising that it's not 100% complete.

If your Eee PC 900 (or better - I don't recommend Windows 7 for an Eee PC 700) isn't a critical working machine for you and you can spare the bandwidth, installing Windows 7 certainly won't hurt your system.