In this post I describe how I fixed my Steelseries Sensei Ten squeaking scroll wheel. Cause This issue occurred whenever I scrolled down (towards me) with slight pressure to the left on the mouse scroll wheel. Resolution I resolved this issue by removing the pads from the bottom of the mouse to access the screws.  I then used a small Phillips head screwdriver to remove the screws.  I noticed that the bar going through the mouse wheel was just catching the bottom edge of a circuit board if I put pressure to the left on the mouse scroll wheel.  I very carefully applied a small amount of WD-40 onto the bar and the bottom of the circuit board where it was touching.  The squeaking sound on my Steelseries Sensei Ten mouse has now stopped when I scroll. Related Posts -  Light marked "W" Steelseries keyboard - what does it do

This post describes what the light marked "W" on a Steelseries Apex keyboard is. This is the fourth light in the row located in the top right corner of the keyboard, next to the Scroll Lock "S" light. The "W" light on a Steelseries Apex Keyboard This light indicates that the Windows key has been disabled.  So, when you're gaming, if you accidentally press the Windows key, you will stay in the game instead of being taken to the Windows desktop. How to turn the "W" light on or off? The "W" light on a Steelseries Apex keyboard can be turned on or off by pressing and holding the special Steelseries function key down, then pressing the Windows key. Related Posts -  Steelseries Sensei Ten squeaky scroll wheel