If your drive is showing the wrong size after a partition error, use official formatting tools to restore its original capacity: Fixing Read-Only Micro SD Cards: Solutions - Ftp
If your drive is showing the wrong size, try these legitimate methods: Disk Management (Windows) Windows Disk Management sdata tool v100 double usb or sd card space hot
That’s exactly what the claims to do. And yes – it works hot (while the drive is active, no reformat required). If your drive is showing the wrong size