I accidentally disabled the touchpad on a laptop (Presario CQ62 running Windows. I think I must have hit some shortcut key. How can I enable it again?
It depends on your model and operating system. Here are three possible solutions:
(For Windows) Go to Start -> Control Panel -> Mouse -> TouchPad On/Off
(For any OS) Look just above your touchpad for a button, probably with an amber or blue light. If it's not there, look along the top of your function keys for an icon that looks like your touchpad.
(For Windows) Go to Start, right click My Computer. Go to properties. Click on the hardware tab and go into it. Click on Device Manager. Look for your touch pad. Right click it and go to properties. You should have an option there to enable it.
This happened to me, and I had to go to the driver recovery (on the hard drive) and re-install the drivers. The prompt showed that the drivers were installed correctly, but the touchpad still didn't function.
So, I powered down the computer and REMOVED THE BATTERY for a couple minutes.
I re-installed the battery, booted it up and the computer is back to 100%
I had to open device manager; computer management and uninstall the Synaptics PS/2 Port TouchPad driver. I reinstalled the driver from the following site. http://drivers.synaptics.com/Synaptics_v15_2_20_C_XP32_Vista32_Win7-32_Signed_Marketing_SGS94_UI-Scrybe.exe
Where you see the light on the side of the touch pad double tap that to enable. The light turns on when the pad is disabled and off when is enabled.
PS. The small light in on the upper left hand side of the pad you wanna double tap on the light itself. There is no button there.
Note: If your touch pad has a "dip" in the upper left corner, double tap that to enable/disable the touch pad.