Cannot delete files or format MicroSD card

I installed the Windows version of SDFormatter, and although the options are slightly different than the Mac version, the results are the same. Format appears to complete but yet the card is untouched.

Then I tried the Windows built-in format option and it's giving the "Windows was unable to complete the format" error for all three file system options.

The card is toast as far as I'm concerned.

Thanks all for the help.

I just had the same issue. I tried:

• Three different micro-SD card readers (a USB 2.0, a USB 3.0, and a micro-to-SD adapter)
• About a dozen different partition utility tools
• Both Windows and Mac

Other microSD cards do not have the same issue.

The tl;dr is that all of them had the same result. It seems the card is hosed and you need to buy a new one.