128GB flash drive (exFat) will not allow it to be copied to because it states "write protected"

My new exFat 128GB flash drive will not allow it to copy to because it states "write protected". I have a Wndows XP system. It will allow me to copy some files but it stops and then indicates it's "write protected". I re-format the flash drive and copy MP3 files but will not allow me to copy more files. When I format drive it indicates 125GB capacity (thought it might be a forgery). I downloaded the latest drivers from MS. Is there a way to confirm that the drive is actually a 128GB drive ? Any suggestions ?
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More about 128gb flash drive exfat copied states write protected
  1. when you go to the computer menu there should be an overlay with that hard dricve and how much room it has left 125 gb is not a huge amount an it will come with a microscopic amount saved for other programs. how big are the files you are bringing over?
  2. What brand of drive .?
    Engineers , scientists and hard disk manufacturers
    Use 10^6 for million
    Computer programers & scientists use 1024 x 1024
    So you get less in GB or TB shown in windows than stated by manufacturer
    To check for USB or flash memory with fake firmware and wrong size
    Use software such as
    H2testW

    Available From various sources
    It fills dish with 1 GB files until full
    Then reads them back and checks checksum for recovered files
    This detects if disk is damaged or fraudulent

    Was it originally formatted in exFat
    Rather than fat 32 or NTFS ?
    Wiki shows windows XP needs a specific Kb update to support exFat

    Regards
    Mike Barnes
  3. Zachasaurs said:
    when you go to the computer menu there should be an overlay with that hard dricve and how much room it has left 125 gb is not a huge amount an it will come with a microscopic amount saved for other programs. how big are the files you are bringing over?


    It's a 128GB flash drive...ran Flash Drive Tester v1.14 and it legit...
  4. Mike...I ran the MS update for exfat and stills will only allow it to only load so much
    data before it goes to Read Only...
  5. Is exFAT journaled? Try running scandisk on it, fixing it, and trying it again.
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