Alcormp.exe ((full)) Jun 2026

Click the or Configuration button to adjust parameters (like shifting from High-Speed to Low-Speed sorting if the drive has many bad sectors). For most users, default settings work best. Click the Start (A) button on the right side of the panel.

If you have ever encountered a corrupted USB flash drive that refuses to format, displays a "disk is write-protected" error, or shows up as zero bytes of capacity, you are not alone. These frustrating issues often signal firmware corruption within the flash drive's controller chip. For drives powered by hardware, the definitive solution to these deep-level issues is a specialized Mass Production (MP) tool known as AlcorMP.exe .

Understanding AlcorMP.exe: The Ultimate Guide to Alcor USB Flash Drive Repair

: The tool installs a custom filter driver ( mpszfilt.sys ). If the program crashes or is closed improperly, your computer's other USB devices (like mice or keyboards) may stop working. If this happens, restart the utility and close it normally to "unhook" the driver.

Go to a trusted USB repair archive and download the specific version of AlcorMP that lists compatibility with your exact controller part number. Step 3: Run the Flash Process Right-click and select Run as Administrator . alcormp.exe

Plug your corrupted USB drive into a direct motherboard port (avoid external USB hubs). Run the diagnostic tool.

Keep in mind that alcormp.exe is a legitimate system file, and it's essential to avoid removing or modifying it unless you're certain it's causing issues. If you're unsure about the file or experience persistent problems, consider consulting with a technical support expert or the manufacturer's documentation.

Alternatively, click the gray box next to your specific device slot to trigger the process for just that drive.

Alcor Micro has released dozens of iterations of its flash controllers over the years. No single version of alcormp.exe works for every chip. Click the or Configuration button to adjust parameters

The official tool is safe for your computer, but it will permanently erase all data on the target USB drive. Is it Malware?

Once you have your controller part number (e.g., AU6989, AU6998, etc.), look for the specific archive package matching that hardware.

: Scans for and "masks" defective sectors on the flash memory chip.

Always use a tool like ChipGenius first to verify your Flash ID and Controller Model . Using AlcorMP on a drive with a non-Alcor controller (like Phison or SMI) can permanently "brick" the device. If you have ever encountered a corrupted USB

If you bought a "2TB" drive that is actually only 32GB, this tool can re-flash the controller to show its true capacity.

Click to begin the factory-level formatting process. Wait until the status turns green and says "OK" or "Ready."

You should be suspicious if: