Some users have recently had their accounts hijacked. It seems that the now defunct EVGA forums might have compromised your password there and seems many are using the same PW here. We would suggest you UPDATE YOUR PASSWORD and TURN ON 2FA for your account here to further secure it. None of the compromised accounts had 2FA turned on.
Once you have enabled 2FA, your account will be updated soon to show a badge, letting other members know that you use 2FA to protect your account. This should be beneficial for everyone that uses FSFT.
They're cheap (or were, probably still are), lightweight, and stable. Sequential speed is livable. Copying a playable portion of the beginning and continuing to copy in the background is how I've seen many newer games handle it when they're large in size.
"The installer installed the distro on the right hard drive. And it also did something else. One of them is formatted by Windows D-drive and took it over for its /home. This is why the Widows D-drive is disappeared."
Sounds like the drive was unintentionally reformatted when you installed...
Resale of digital "goods" is long overdue, I wish the Frenchman luck in his endeavor.
Reality never ends up matching the ideal vision of it. All roads lead to lining publisher pockets at minimum effort.
Can you see the missing files if you boot into Linux? How is the 1TB HDD partitioned and formatted? Was Bitlocker on? Avoid writing anything to the drives you want to recover files from while you're determining a solution.
Edit: As far as disk and partition imaging, I'd suggest Clonezilla if...
DVD is about 12 - 14. Blu-ray would be 20 - 30+ at slower read speeds. It'll ramp to 45MB/s or higher if the files are large and drive is fast enough. A quick search shows the US average as worse than that but, I'm not going to try and confirm either way.