cgsecurity.org

Actually in my case linux GPT fdisk by Rod Smith was quicker way to restore partitions - "c" and then "w" from recovery/transformation command
more info: http://www.rodsbooks.com/gdisk/repairing.html

As i have never heard of Microsoft using it I guess this is a nice free space where viruses and ...

Why is it weird, what windows drive management shows?
because all partitions have incorrect sizes and file system, some of them are "unassigned" (free space) and I can't assign letters to healthy ones

Drive was partitioned almost exactly as testdisk shows - except the two reserved ones:
those ...

I've tried to repair some chinese pendrive with some weird chinese firmware tool but instead writing new sectors only on pendrive they were written on every removable media connected to pc. I've managed to recover most of my important files from smaller MBR drives without visible partitions. On 4TB ...