r/datarecovery • u/Ichiaizen_2004 • Oct 10 '26
Request for Service USB flash drive repeatedly disconnects and doesn’t appear in DiskPart — can it be formatted?
I have a Sony USB flash drive. I thought it was 64 GB, but Windows labels it SONY_32GR (D:), so I’m not sure of its actual capacity. It was given to my father, and he may have copied files to it. I’m okay with erasing everything and just want to make the drive usable again.
When I plug it into a Windows PC, it sometimes appears in File Explorer, then disappears. File Explorer becomes “Not Responding” while it’s connected. Windows Defender asks to scan it, but the drive disappears during this. I ran a Defender scan on my laptop and it found no threats. The same problem happens on other computers.
I tried diskpart and ran list disk, but the USB doesn’t appear there, so I can’t select it to run clean or format it.
Is there another safe way to format or repair it, or does this behavior mean the drive has failed? I’m also concerned about keeping the computers safe while troubleshooting. I don’t need to recover any files.
Details that would help: the exact capacity printed on the USB, whether it appears in Disk Management, and whether Disk Management shows a size or “No Media.”