My WD Passport Ultra 1 TB completely crashed after moving a large file to the external hard drive. All laptops at home recognises the HD and even the PlayStation 4 recognises it. But it doesn’t show up in My Computer. I tried to format the HD, but it failed. Then I ran Data Lifeguard Diagnostics for Windows, but it failed because there were too many errors. I also ran TestDisk, but it shows that the HD is not readable. Furthermore I ran more common software to analyze the HD, but all failed.
What to do?