Did your HP Touchpad not working properly on your PC running Windows 10? Generally, these types of the issue might occur because of corrupted, incompatible or outdated touchpad drivers, or your touchpad might be disabled with the physical key, due to an incorrect configuration, any corrupt system files etc.

However, your HP touchpad is not working on your PC; we suggest you that use an external mouse or keyboard shortcuts to follow the below-given solutions. There are few solutions which help you in fixing the issue, but you need to follow them in an exact sequence to avoid trouble and damages. The methods are as follows:

Update the Touchpad Driver.
Reinstall Mouse Driver.
Enable Touchpad from Settings.
Before going with the instruction, we advise you to create the restore point to secure your important documents.

Source :-*Fix HP Touchpad Not Working in Windows 10*- HP Printer Support