How to Open Up the Microsoft Laser Mouse

Written by michael wallace
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How to Open Up the Microsoft Laser Mouse
A laser mouse often needs an easy fix. (computer mouse image by Edyta Anna Grabowska from

The typical computer mouse has come a long way over the years. Whereas before the scrolling capabilities of the mouse was controlled by a ball on the underside of the unit, these days many use lasers to scroll. This is true of the Microsoft Laser mouse and if you've been having problems with your particular laser mouse it may be time to open it up in order to see what's the matter. The good news is that this can be accomplished in a matter of minutes.

Skill level:

Things you need

  • Small Phillips screwdriver

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  1. 1

    Unplug the mouse from your computer. If your mouse is wireless simply unplug the USB transmitter from the port in the computer.

  2. 2

    Turn the mouse over and slide the battery cover off of the bottom of the unit. Remove the two batteries from the compartment.

  3. 3

    Remove the single screw in the middle of the bottom of the battery compartment. This is the screw that holds the main circuitboard in place.

  4. 4

    Turn the mouse right-side up and pry the top plastic housing off of the mouse at the seam at the base plate of the unit. The green circuit board and scroll wheel will now be visible.

  5. 5

    Unplug the ribbon cable located just below the plastic scroll wheel. Lift the mouse wheel out of the housing.

  6. 6

    Lift the green circuit board out of the housing. The mouse is now open and disassembled. Reverse the steps for reassembly.

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