Thank you for your reply and explanations that could be indicated on your site, because it could help to estimate if rhe battery is good.
Otherwise on my quite different computers, old Vista and more recent win 7, I observe that when starting, I have unknown device, then not working correctly, code 10, trying to start many times to finish after ending charging finally to a good conection Quirkbot(COM6) in ports(COM and LPT) for peripherals.
It looks like if at starting, there was wrong transients which disappear after some time, several minutes .
It is frustating and random, but clearly it is related to end of charging and the yellow LED on off, necessary to obtain a good connection, may be some perturbating transient for the informations exchanged between the computer and the quirkbot, when charging or the charging yellow LED on lightning ?????????