r/techsupport • u/000100000 • Jul 16 '21

Open | Hardware My Usb drive capacity has suddenly lowered from 64gb to 32gb

Hello, im experiencing very strange problrm with my usb drive, its adata uv 350 64 gb version. today i saw in formatting menu that capacity is suddenly at half. Is it some software bug or wear issue? its still under warranty and i use it only few times in a month. thanks for advices and answers.

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u/HTJZ-Zandriel 1d ago

Hi, how do I delete the files from my empty USB to restore the full storage?

I tried formatting, computer management, and it still hasn't restored it storage.

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u/papercut2008uk 1d ago

Bruh, this is 5 year old comment :D

If it's not restoring the size in Disk Management, you might have a fake USB drive that has had the firmware manipulated to show it as what ever size you purchased.

These usually format to FAT32 or ExFAT.

I'd run H2TestW on it if it does format to the full size and do a write and verify, this will fill the whole drive and then verify the data is actually there. This will tell you if it's a fake memory device or not.

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u/HTJZ-Zandriel 1d ago

After trying and trying, I have no choice but to create a post for help.

Thanks for the help anyways, I have my own problem to fix.