I have W 8.1 W64 HP Envy 15t. I installed Cucusoft network monitor. The install required a reboot. Upon reboot the mouse and touchpad stopped working with no cursor on the screen. I went into safe mode and uninstalled the program. I rebooted. Still no change. I rebooted without safe mode. I went into device manager and there were no red flags. I updated the mouse driver. The message here says "Currently this hardware device is not connected to the computer. (Code 45). Still no change -- no cursor, both not working. I did a system restore to yesterday's settings (before Cucusoft). Still no change. I checked my startup programs and saw nothing new (malware sometimes installs something into startup). What else can I try?