Micro sd card deletes files when copied and cannot format to NTFS

[murn]

Hi, I have decided to buy a Samsung 128 gb micro sd card to use as extra storage in my surface pro 4. When I copied files to the card around 10 gigs of music images and documents, it took 2 hours which was unbelieving, I could copy those same files to my phone sd card in about 30-45 mins. Anyway when all was completed most of the folders where empty so i manually dragged each file and watched it copied to the sd card. I left the folder to copy another doc and behold the previous copied files are gone also the just copied doc. I tried formatting the card to NTFS from exFAT but it always failed and shows up an RAW which then I have to format back to exFAT. Honestly the drive is useless to me because I can't keep anything stored on it, whatever help I can get I am thankful for.

 

[t53186]

Sounds more like the micro sd is not compatible. When you write the files to the card are you using a card reader on a pc?

 

[murn]

Sounds more like the micro sd is not compatible. When you write the files to the card are you using a card reader on a pc?

It goes into the pc itself.

 

[t53186]

OK, so if it's in the PC. How about if you try formatting using diskpart via the command line then copy files over.

C:\> Diskpart
DISKPART> list disk
DISKPART> select disk (id)
DISKPART> online disk (if the disk is not online)
DISKPART> attributes disk clear readonly
DISKPART> clean
DISKPART> convert mbr (or gpt)
DISKPART> create partition primary
DISKPART> select part 1
DISKPART> active (if this is the boot partition)
DISKPART> format fs=ntfs label=(name) quick
DISKPART> assign letter (letter)
DISKPART> list volume

 

[SoggyTissue]

extended periods of time writing to sticks and cards can damage them. i lost a 32GB usb3 stick due to overheat ... completely dead.
shouldnt of tried to copy all my prawn to it in a single 2hr session.

 

[murn]

OK, so if it's in the PC. How about if you try formatting using diskpart via the command line then copy files over.

C:\> Diskpart
DISKPART> list disk
DISKPART> select disk (id)
DISKPART> online disk (if the disk is not online)
DISKPART> attributes disk clear readonly
DISKPART> clean
DISKPART> convert mbr (or gpt)
DISKPART> create partition primary
DISKPART> select part 1
DISKPART> active (if this is the boot partition)
DISKPART> format fs=ntfs label=(name) quick
DISKPART> assign letter (letter)
DISKPART> list volume

Had no luck with this method also. I tried easeus partition master which was able to format the card to NTFS but the computer didn't recognize the device until I format it back to FAT32. I also tried clonezilla but no luck there. I got back my money from ebay for the purchase but, I'm not sure if i want to buy another micro sd and get this same problem.

 

[t53186]

Sorry no luck. Suggest you might try a sandisk memory card purchased at a reputable dealer.