1 - Sorry, yes I did try the original way (booting into CWM not flashing) and when i got the aforementioned error I tried flashing, for your info I have now reflashed TWRP and am using CWM only to boot from.
2 - No I wasnt, I was user 6.0.4.6, I have now downgraded and still receive the same error.
3 - Fully updated
4- I am for the most part using my desktop, I know it just leads to more chance of an error but I have made sure there are no typos.
Just a quick query, I cannot perform the adb push when in CWM recovery....is that right? When I am in CWM my HTC does not show on the list of attached devices either. I have to boot into system before the push returns the above error, is that correct?
adb works in CWM recovery just fine, which version of windows are you using? Best to use Win7 (maybe even 8), but 8.1 is definitely gonna have problems.
Let me check something... and i'll post back...