XP for known reliability.
Windows 7 isn't as battle-tested.
I'm about to reinstall m stuff and I'm wondering if it's worth getting Windows 7 over XP? I'm about to get a new OCZ Vertex Turbo 30GB and as far as I've heard Windows 7 is getting more out of the performance of the SSD's. I'm using RoadRunner / MapMonkey and I do hibernation.
Or will XP still be fine enough? I want performance in starting up and other overall performance. (I'm using a Sempron Mobile 3000+ system).
I am currently using winxp for my carpc. I have used win7 and was very impressed with it. I never used it for a carpc so I've never tried tweaking win7. All I can say is that winxp can be easily tweaked for pretty fast boots and there have been a couple of threads with people having trouble with certain hardware/software in win7.
I've been running Win7 on my home desktop now since the RC came out. It's flawless for me. I'm cautions about CarPC use though, Win7 is much slower than XP for cold boots. The hybrid sleep mode tempts me to give it a go though.
win7 with uac disabled = perfect, or just remember to run as admin
XP is almost 10 years OLD now... ok, with SP3 its not so old... but still OLD OLD OLD
"Did you test it in carwings??"
Sun, Come shine my way
May healing waters bury all my pain
Wind, Carry me home
The fabric of reality is tearing apart
The piece of me that died
Will return To live again
Windows 7 has some nice features, but as DP said, XP is reliable. Win7 isnt tested, and has been known to have driver issues. Especially with the hybrid sleep feature I'm sure it will quickly take the stage as the main OS for carpc's, but until such a time when it has been tested and roughed out on enough different types of hardware, XP is the wise choice.
Don't know about you, but I'd much rather be secure in the knowledge that if something goes wrong it's usually the hardware, not the OS. Trying to troubleshoot a problem from two different sides at once is not very fun.
I tried Win7 and ended up going back to XP. Too many incompatibilities and driver issues, XP has been more stable for me. 7 has good device support, and most likely it will work, but there are some unforseen little issues that need to be worked out, such as USB devices causing hibernation to screw up. To get around the same speed as XP, you have to use the Tiny version of 7. Hybrid sleep is the only significant feature that may be applicable to a carpc environment. Hibernation times between 7 and XP are roughly the same. One other thing to consider is that in XP you can make the taskbar, menus, startmenu, icon, font etc bigger to make it easier to use on a touchscreen. Havent figured out a way to do that in 7.
windows 7 is really nice OS for carpc. Mostly because the UI has been polished to make user friendly, lots of little nice features like a nice OSK. Though there has been hit or miss on hardware drivers. I've gotten it to work really nicely on some machine, but glitchy on other machines. I say its definitely worth a shot!
Agree on the reliability.
Think on what you are planning: gps, tire pressure sensors, rear view cameras, you name it.
Are all of those tested and with drivers for W7? If you are not 100% sure, stick to XP, it will save you a few headaches.