Right-click the primary executable file ( AlcorMP.exe ) and choose .

. These identifiers are critical for technicians attempting to recover data or repair "dead" flash drives that are no longer recognized by operating systems. Technical Specifications

USB Flash Drive Speed Tests - VID = 58f, PID = 1234 - NirSoft

Have a different PID under the same vendor? Search for “Alcor Micro PID [your number]”. For PID 1234 specifically, the steps above remain the definitive guide.

This specific VID/PID combination (058F:1234) is frequently associated with devices that have failed or are showing "0 MB" capacity in Windows. This often happens when the controller firmware is corrupted or the flash memory chip has a hardware fault.