The software version does not support your specific NAND flash memory chip. Download a newer or alternative version of AlcorMP.
Furthermore, many download sources for this tool explicitly warn users that security software may interfere. A guide on using AlcorMP.exe for a specific type of flash memory notes: "⚠️ Tip: Some antivirus software may falsely report it as a virus. Please temporarily disable or add it as a trusted path".
Alcor releases different versions of AlcorMP for different chip iterations (e.g., AU6989, AU6998). Match your Controller Part Number found in Step 1 with the corresponding AlcorMP software version version on trusted repository sites like FlashDriveReminder or USBDev. Step 3: Configure and Run the Tool
: A 64GB drive suddenly shows up as having only 8MB or 0 bytes of storage.
Plug your corrupted USB drive into a direct motherboard port (avoid external USB hubs). Run the diagnostic tool. alcormp.exe
(Alcor Micro Mass Production Tool) is a specialized utility used for low-level formatting, repairing, and managing USB flash drives that use Alcor Micro controllers . It is most commonly used to fix "Write Protected," "No Media," or corrupted drives that Windows' built-in tools cannot format. Quick Setup Guide
This combination of features makes the tool indispensable for IT repair shops, data recovery specialists, and advanced users who need to salvage seemingly "dead" USB drives.
This tool is designed for severe logical and firmware errors. It is highly effective at resolving the following issues:
To help you find the right version or a safer alternative, let me know: error message are you seeing? (e.g., "Disk is write protected") What is the of the USB drive? Do you have the VID and PID numbers from ChipGenius? The software version does not support your specific
: System drivers required to interface with the USB controller at a low level during the "Mass Production" phase. ⚠️ Critical Warnings
Their controllers are frequently used in laptops (like ThinkPad models from Lenovo) and in many generic or "off-brand" USB flash drives sold worldwide. AlcorMP.exe is the official tool provided by Alcor Micro for internal manufacturing and for end-users to fix problems with these specific drives.
: Click Start to begin the mass production process. Do not unplug the drive until the status shows "OK" or a green completion light. When to Use AlcorMP.exe
Yes, but only after confirming you do not use any Alcor smart card reader. Deleting the genuine file will not harm Windows, but it will break smart card functionality. A guide on using AlcorMP
To understand the file, it's helpful to know its publisher. is a Taiwanese fabless semiconductor company. They are a key player in designing and developing ICs (Integrated Circuits), including USB 2.0/3.0 card readers, smart card readers, and, most notably for this article, USB flash drive controllers for a wide range of consumer products.
Alcor Micro releases specific versions of AlcorMP for different chip generations. Find a reputable database (such as USBDev or FlashBoot) and download the specific version of AlcorMP that matches your controller part number. Step 3: Run the Flash Drive Repair Process
You must find the specific version of AlcorMP that supports your controller model, often found on technical forums.
Click to begin the low-level formatting and firmware flashing process.