Microsoft PS 2 Mouse Driver

The Microsoft PS 2 Mouse driver lets Windows communicate with a mouse connected through a PS/2 port, enabling pointer movement and button input. Windows typically includes support for standard PS/2 mice, so reinstalling or updating the built-in driver may help when the mouse is not detected or does not respond correctly.

Key Features

• Basic mouse input: Supports cursor movement and standard left- and right-button actions for everyday navigation.
• Scroll-wheel support: Enables scrolling on compatible PS/2 mice, depending on the mouse hardware.
• Windows settings integration: Works with standard mouse controls, such as pointer speed, button configuration, and double-click speed.
• Built-in driver support: Uses the Windows PS/2 input driver stack on compatible systems running Windows 11, 10, 8, or 7. Actual operation also depends on the computer’s PS/2 controller and hardware support.

How to Install

1. Check the physical connection. Shut down your computer before connecting or reseating a PS/2 mouse. Plug it into the mouse-designated PS/2 port, then start the computer. Avoid connecting or disconnecting PS/2 devices while the system is powered on.

1. Allow Windows to detect the mouse. Standard PS/2 support is usually installed automatically. If the pointer and buttons work normally, a separate download may not be necessary.

1. Open Device Manager. Press Windows + R, type `devmgmt.msc`, and press Enter. Look under “Mice and other pointing devices” for the Microsoft PS 2 Mouse or a similarly named PS/2-compatible entry. Use the keyboard to navigate if the mouse is unavailable.

1. Update the driver. Select the mouse entry and choose “Update driver,” or “Update Driver Software” on some older Windows versions. Search automatically first. If you have downloaded a verified, compatible driver package, extract it if needed, then choose the option to browse your computer and select its folder.

1. Restart and test. After installation, restart Windows and check pointer movement, clicking, and scrolling. If the mouse remains unresponsive, inspect the connector pins and confirm that the PS/2 controller is enabled in your computer’s firmware settings, if that option is available.

Before using a downloaded package, verify that it matches your Windows version and system architecture. A driver update cannot correct a damaged port, bent connector pins, or an incompatible passive USB-to-PS/2 adapter.