Went through the Helix fw 2.8 update listed for Windows 8, including the hxe and updater, then the PC plus edit 2.0 listed for Windows 8, that requires the PC plus fw 2.00.1, BUT the firmware.2.00.1 is not listed for Windows 8, only Windows versions 7 and 10. So, when using the updater, is not listed for installation. I manually downloaded the firmware from the Windows 7 list (a PITA) was able to save it, then used the updater to load the local file. I believe it's just an oversight, but has not been added as of today so far.
I know win 8 is a small relative user base, but I kept it on my main PC due Windows 10 dropping a key feature that I use regularly. My other PCs have 10 on them but aren't physically close to the Helix and PC plus.
Just putting this out there...
Dave