Window 10 Prof reported something like: filesystems can not be solved in Dutch

First effort with TestDisk resulted in Harddisk too small, check jumpers
According the site of Intenso FAT32 was original.
tried to recreate FAT Boot sector
I have made a Dump Lots of zero's
Tried too write the partial table:
write error: Can't write new FAT boot sector.
according Windows and CrystalDiskInfoPortable the HardDisk seems Okay
I have learned a lot trying this in these Corona times
Any suggestion will be welcomed
regards
Hans