there go $70 again - Follow-up to my last rant... The HDD is still not booting. I'm afraid it really is fucked up. (The screenshot is TestDis - devRant
Invalid FAT boot sector - unsure what to do - cgsecurity.org
Repair MBR] Master Boot Record of This Hard Drive Is Damaged - EaseUS
5 Fixes for “Invalid media or Track 0 bad - disk unusable” Error in Windows 10
Invalid FAT Boot Sektor | ComputerBase Forum
SOLVED: "You Need to Format the Disk Before You Can Use It" after improper USB unplugging. - wintips.org - Windows Tips & How-tos
Testdisk You Will Have to Reboot Testdisk Analyse Cylinder Slow