Start Menu Scrolling not Working

In Lenovo laptop, after updating windows 10 scrolling not working on start menu. It can be problem with ELAN  Pointing Device. Here is simple steps to solve this this problem: 

STEP 1: Press Win Key + R to open run command and type regedit click ok.

STEP 2: The Registry Editor will be Opened. Select HKEY_CURRENT_USER from the window. 

STEP 3: Select SOFTWARE from the list.

STEP 4: and then select Elantech. 

STEP 5: Select SmartPad from the list. 

STEP 6: Select ScrollControl_Mode from the right panel and double click on it. 

STEP 7: Change its value to 1 and click OK.  

Done