| Error / Symptom | Possible Solution | |----------------|-------------------| | Driver not found after extraction | Ensure the .inf file is not blocked (right-click → Properties → Unblock). | | Code 52 (unsigned driver) | Reboot Windows 7 with F8 → Disable Driver Signature Enforcement . | | COM port not appearing | Try a different USB port; reinstall the driver after unplugging the device. | | ZIP corrupted | Redownload from official source; do not use download managers. |
Windows will now search the folder and begin the installation. You may see a Windows Security dialog box warning about the driver's publisher. This is normal. Click "Install this driver software anyway" to proceed. Once the installation is complete, click the Close button.
Be cautious when downloading ZIP files from file-sharing repositories or forums. Mitsubishi drivers are proprietary software. Downloading "unofficial" ZIP files carries the risk of corrupted files or malware. The safest source is always the official Mitsubishi Electric support page or the installation media that came with your PLC hardware. mitsubishi easysocket usb driver windows 7 zip link
Inside these folders, you will find critical system configuration files such as Easysocket.inf , Easysocket.sys , or architectures-specific subfolders (e.g., amd64 or x86 ). Step-by-Step Installation Guide for Windows 7
Right-click on the device and select . Select "Browse my computer for driver software" . | Error / Symptom | Possible Solution |
While various third-party repositories host standalone zip files, the most reliable way to obtain the Easysocket USB driver is through your existing installation directory. Mitsubishi typically bundles these drivers with its engineering software.
Click the button on the right-hand side of the window. | | ZIP corrupted | Redownload from official
So, if you can't download a simple ZIP file, how do you get the driver? The answer is to obtain the appropriate engineering software through official channels.
Connecting your PC to a Mitsubishi Programmable Logic Controller (PLC) requires a specific communication middleware called EasySocket. This driver allows programming software like GX Developer, GX Works2, or GX Works3 to communicate with MELSEC PLCs over a USB interface.
Furthermore, the installation process for these legacy drivers is rarely intuitive. It often requires manually extracting the zip file, going into Device Manager, right-clicking the unknown device, and selecting "Update Driver," followed by browsing the local computer for the specific .inf file found within the unzipped folder. The simplicity implied by the name "EasySocket" is often ironic, as the installation process requires a level of manual intervention that modern users are unaccustomed to.