My Sony Vaio laptop has a startup problem, it is attached to the power of an automatic repair. However, this fails every time.
SHOULD I BE WORRIED?
Because of a virus or malware or a Trojan?
Or is it possible (I do not know if a system update has taken place) that a system update has not been downloaded without problems?
You could forfeit restoring the last resell point. For that you would have to see what WINDOWS you have installed.
WINDOWS 10 procedure and information here: