have managed to remove my account by using Settings->Repair & formatting ->Reset Android
not need to do Full reinitialization.
Still you need to go through the motions of re-installing archtools, google play, etc.
at the moment all is going well, the only problem I found was with the video/Youtube playing!
With the Youtube application that is in the tablet I cannot play any videos, either with flash 10.x or 11.x but I have installed another youtube application from Google play store , 4.1.23, and it works perfectly using flash 11.1
I have seen quite a lot of posts about this Youtube/Flash problems so it seems that the problem can be sorted by downloading different versions of the YouTube. So it seems to me, but probably things are not that simple aren't they?