SD Card Backup Problem

I have tried several times now to back up my SD Card and it continually fails 1/4 of the way through the back up. I am using Win32DiskImager. I don’t know why it has started this, i have backed it up in the past. Anyone experience this in the past and have suggestions to try? Everything is still operational on the card. Just can’t back up.

Thank you

some tips to do:
try another software i really dont realize why is ever windisk32image.
are you running win32image as administrator?
try with another SO maybe in past win32image running well with same SO but afther some updates no more?

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