I lost all the files in 64gb model and 32gb model both of them says unknown usb device

[valasudurai]

I lost almost lot of files i stored its new pendrive i don’t know why it says this error i bought this from amazon if it works like this i won’t buy this product again

one is 64gb sandisk cruzer blade
(TAD-SDCZ50, SDCZ50-064G, BN191157705W MADE IN MALAYSIA)
second one is 32gb sandisk cruzer blade
(TAD-SDCZ50, SDCZ50-032G, BN190726778W MADE IN MALAYSIA)

[ed_p]

Did you remove them from the pc without using the Windows Safe to Remove option?

Did you shut the pc down with them plugged in?

Did you run a CHKDSK command on them?

[valasudurai]

I think i just screenshot what the error msg i got i don’t see any usb drive on my pc then how can i use chkdsk option

[ed_p]

What does Disk MANAGER show when the drive is plugged in? Does File Manager show the drive?

[valasudurai]

No, the usb disk was not shown in the disk manager

[ed_p]

Try them with another pc. If that works, copy all your files off of them.

To have it happen to one drive it could be a glitch, to have it happen to two different drives implies to me that you may be having problems with heat, low voltage, an OS glitch.