[abawany]

I had one too and as I recall, the highest OS one could run on it was WM 6.5, which was a completely different beast than W7+. I remember that the best improvement I made to this HD2 was install an early version of Android on it a few years later.

https://en.wikipedia.org/wiki/HTC_HD2

[TomMarius]

Yeah you're right, I confused the versions. I had Android on it as well, good times. Bought Samsung Galaxy W after that (yeah, W!).

[asveikau]

I thought there was a hack to put 7 on the hd2. Unofficially of course.

There was also the hd7 which was a very similar device.