“Elgindy USB Serial Drivers” do not actually exist as a hardware driver; instead, this phrase is a common misconception resulting from a mix-up between a software utility called Elgindy USB Protector and standard USB-to-Serial communications drivers.
If you are trying to make a hardware device communicate with your computer or protect your USB drive, you are likely looking for one of two completely different things. 1. Elgindy USB Protector (The Software)
Developed by Elgindy, this is a lightweight, portable security tool for Windows. It does not connect serial hardware; rather, it modifies how Windows interacts with storage devices.
What it does: It locks USB flash drives into Read-Only mode. This prevents malware or viruses from auto-writing itself to your thumb drive when plugging it into public or untrusted computers.
Features: It includes “Normal,” “Read Only,” and “Disable” modes. It requires no formal installation and runs directly from its executable file.
Where to find it: Because the developer no longer maintains an active official homepage, the software is hosted on trusted mirror networks like the Softonic Elgindy Download Page. 2. Standard USB Serial Drivers (The Hardware Drivers)
If you are trying to get an Arduino, a programming cable, a modem, or a USB-to-RS232 adapter to work, you do not need Elgindy software. You instead need the driver corresponding to the specific chipset inside your USB cable.
The vast majority of these devices use one of three chipsets. You can identify yours and install it safely using these official steps:
Identify Your Chip: Plug the device into your PC, open Device Manager, and look under Ports (COM & LPT) or Other Devices. Note the name (e.g., FTDI, Prolific, or CH340).
FTDI Chips: If your device uses an FTDI architecture, download the standard Virtual COM Port (VCP) drivers directly from the FTDI Chip Drivers Page.
CH340 / CH341 Chips: Very common in budget microcontrollers and serial cables. The official, up-to-date packages are hosted on the WCH CH340 Driver Page.
Prolific Chips: Commonly used in GPS receivers and older serial-to-USB cords. You can get these straight from the manufacturer via the Prolific PL2303 Driver Support Page. How to Install the Hardware Drivers
Download the respective .exe setup file or .zip folder from the official links above. Extract the folder if it arrives compressed.
Right-click the installation file and choose Run as Administrator.
Follow the setup wizard prompts and restart your computer when finished.
USB Serial Driver (Usbser.sys) – Windows drivers – Microsoft Learn
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