It was probably Ubuntu Hoary Hedgehog, though it didn't stick. I tried other versions of Ubuntu and even gentoo again over the following years, but none of them would stick. I would eventually tinker with something I couldn't repair, and rather than re-installing and starting again, I'd just return to windows.

Linux finally stuck for me last year, and Linux (Arch and then CachyOS) has been my full time OS for about the last 18 months