My poor crashed laptop was put in a closet after it's meltdown. This evening DH took it out to see if he could save (parts) of the harddisk. I didn't expect much of this rescue, but one can hope..
To our amazement the Toshiba made feeble sounds after being plugged in and oh HALLELUJA:
it revived itself. The screen lit up, Windows appeared and it worked again as if it had never died.
I am sceptical about unexplained miraclous revivals, so I immediately made a backup of my important files on the external harddisk.
Meanwhile, I'll do a happy dance and enjoy while it lasts. Yeey!