MicroSD card not erasable?

I had a 32gb MicroSd card in the Huawei Honor5 smartphone as memory extension used on Android. Now I have replaced this after copying the contents with a 64gb card.

I would like to use the 32gb card back in the camera, but it can't be deleted or formatted on the PC with Win10. I can erase all data, then card out of the card reader and back in: all data is back.

Quick formatting: Error message: Windows can't complete the formatting.

Format: 1/2 hour Used, the same error, all data are back.

Formatting with Sandisk Formatter: Formatting failed

Who knows advice?

The partition can't be deleted?

With Paragon Disk Manager 15 and with EaseUS Partition deleted and formatted! Then everything is back - I give up…

Which file system does the card have?

FAT32

Then convert it to NTFS:

(DOS box)

convert x: / FS: NTFS

where x is the corresponding LW book character.

Thereupon restart, Convert ran through, formatting with Windows gave the picture:

Has brought nothing…