Likely fix
Fix: Mouse scroll wheel not working
A scroll wheel can stop working because of dirt, app focus problems, mouse settings, low battery, custom mouse software, or a worn scroll encoder.
Quick answer
Test scrolling in another app, clean the wheel gently, check mouse settings, and test another mouse.
Important warning
If the wheel scrolls the wrong way, jumps, or scrolls randomly on multiple devices, the scroll encoder may be worn out.
Try this
- 1 Try scrolling in another app or webpage.
- 2 Click inside the window you want to scroll.
- 3 Restart the browser or app.
- 4 Clean around the scroll wheel gently.
- 5 If wireless, replace or charge the battery.
- 6 Check mouse scroll settings.
- 7 Disable custom mouse software profiles temporarily.
- 8 Test the mouse on another device.
- 9 Try another mouse on the same computer.
Common causes
App window is not focused.
Dirt around scroll wheel.
Low battery.
Mouse scroll settings changed.
Mouse software profile issue.
Worn scroll encoder.
What to check next
- Check whether scrolling works in another app.
- Check whether the window is focused.
- Check scroll settings.
- Check whether another mouse scrolls normally.
- Check whether the wheel feels physically loose or gritty.