According to your description, I suggest you refer to the following information:
1, when the indicator light in the upper left corner of the touchpad is yellow, it means that the touchpad is closed, but your touchpad can be used normally. This situation may be caused by a problem with the touchpad driver. I suggest you refresh the touchpad driver. The download address is as follows: (It can be installed and used on XP, VISTA or WIN7 systems).
FTP://FTP . HP . com/pub/soft paq/sp 5450 1-55000/sp 54906 . exe
2. If the touchpad driver is installed and the effect is not good after restarting, you can save the data and restore the BIOS to the default value. The method is as follows:
Click F 10 to enter the BIOS, select Retreat Defaults in the file, click yes, and then select Save Changes And Exit to save and exit.
I hope the above reply can help you.
If the above information can't solve your problem, you can log on to www.hp.com.cn/chat,, the online chat room of HP Network, and ask an online engineer to help you solve the problem further. More product information is available in www.hp.com.cn/800..