This question refers to my ADATA flash drive (UV128/32GB).
I seem to have inadvertently wiped my flash drive. When I look at it in Windows 10 Disk Management, it shows up as "Disk 1, Partition 1" and is described as Simple Basic RAW (Healthy Active Partition) on the upper half of the page. On the lower half of the page, Windows says it is "Removable 28.91GB Online". In File Explorer, Windows assigns it a drive letter, E:, but puts a question mark by the icon. I can't look at the contents of the drive in File Explorer. When I try to format it in File Explorer, I don't get a Format option. When I try to format it in Windows Disk Management, I get a message that says "Virtual Disk Manager - The system cannot find the file specified". When I use Diskpart, I can see the disk in the list of disks. I can select the disk but not clean it. I can create a primary partition on the flash drive and activate but I can't format it.
A website I was looking at (Fossbytes.com) said that flash drive manufacturers often provide proprietary utilities to help with jobs like reformatting the drives they make. I went to the ADATA website but couldn't see any such utility there. (They have a utility called UDFtogo but the manual doesn't talk about any ability to reformat the drive.) I've tried asking for help on their website but the form you have to complete doesn't work properly. It insists on a serial number but there is no serial number on the drive. As an alternative, it gives you a part number field but I can't enter anything into it.
The drive never gave me any trouble until I attempted to install a USB-bootable hard drive test utility on it earlier today so I very much doubt the drive has failed due to wear and tear; I think the utility I tried to install just hammered the formatting on the drive. I'd appreciate your help in fixing my flash drive.