I have a standard 64 GB SD card after formating it shows only 128kb . How can I recover 64 GB

Solution
Or even bin it & buy a new card as I would have done. Once they start messing me about I don't trust them anymore, and there's only one place for memory cards you can no longer trust.

It's not proven to be untrusty, Some other device might have changed file system or partitioned it.