First, lets make sure that scrolling is still enabled. Look in the bottom right of the taskbar and see if your synaptics icon for the touchpad properties is there. It will either look like the touchpad or it will be a red icon in the shape of a tear drop. If it is there, right click on it and scroll to properties. If it is not there, go to the control panel and click on mouse properties. When the mouse properties window opens, look on the top right hand side and look for the tab marked device properties, click on this tab...this is for the touchpad settings and controls. When this window opens, look in the left hand pane and scroll down to "scrolling", see if the box is checked to enable scrolling....if it is checked, uncheck it, hit apply, then check it again and hit apply again, click ok and exit. Now, if you do not see any of the above and all you see is mouse settings, then the driver for the touchpad has been corrupt and you will need to go to HP support drivers and download a new driver for the touchpad. Go to the link below and put in the model number of your laptop, then in the next window pick your operating system, now, scroll down and find the touchpad driver listed. Download it into a folder on your deskyop, open the file and run it, it will install a fresh driver. Reboot the laptop and all settings will be on by default.