pvbers said:
I also tried all the above mentioned methodes; no succes.
The only way i can think about at the moment is: (i have a SSD and a harddisk in the laptop)
Backup and empty my harddisk. Copy my SSD imasge to my harddisk. Start from it and see if it works and still is activated.
If so, then disconnect or hide my SSD. Perform the upgrade (in any way) on the harddisk. See if it works and if it gets activated. If so then put the image back on the SSD (or perhaps do a clean install on the SSD).

I have no time the coming days to try this, but at the moment it is the only way i think is left to try.
In reply to the trouble installing windows 10 & noting my original 8 partitions I found in Linux i.e. were
& The drive details noted then were wiped by sticking windows 10 upgrade on a Toshiba flash drive.
I'm now vainly trying to stella recover the file it wiped. Others read:
Dev SDA1 Fat32 500mb Boot
Unallocated 1.00mb
Dev SDA2 fat 32 40mb
Dev SDA3 unknown 1.00mb
dev SDA4 unknown 127mb
dev SDA5 ntfs 490mb
Dev SDA6 ntfs 98.33gb O/S
dev SDA7 ntfs 450mb
dev sda8 ntfs 11.88gb and
unallocated partition with an unallocated file system of 3.44 mb.

This seems to determine that they were produced in Linux & dos command but using an ssd I presume
there was more then 1 o/s & multiple registrys & maybe a games & pictures 1.
Would this make it easier & quicker to browse & should I bother trying to retrace the partitions?
I had a message from windows 10 e. iso saying the drive I was trying to format is gparted so needed to change the bios settings & remove the parts & reformat with win/Vista. Which method is quicker & better in general or should I just use windows f/s?