Win7 system mouse wheel failure how to do

1. Right-click the computer icon on the desktop and select “Manage”;

2. In the window interface, click on the left side of the device manager <;

3, expand the mouse and other pointing devices, choose to uninstall the following "HID-compliant mouse", and then restart the computer.

Method 2:

1. Press Win+R, open the run, type regedit, press Enter, enter the registry editor;

2. Expand to HKEY_CURRENT_USERControl PanelDosktop Find and double-click on the right side to open “WheelScrollLines”, change the data value to "3", click OK to save;

3, restart the computer after the setup is complete.