Disable toshiba L300 touchpad - Toshiba Satellite Pro L300 Notebook

go to the touchpad icon on the tool bar normally on the far right and right click on it and open that menu it should be located in there.

Try reinstalling the touchpad driver.
You can download the touchpad and device drivers for your model laptop from the Toshiba WEB site from their download page. Make sure you enter the model of your laptop so you can get the correct drivers. Please click on this link: -
http://www.csd.toshiba.com/cgi-bin/tais/support/jsp/home.jsp

update the driver

Hi jon bernardo...

To fix an unresponsive touchpad on your laptop, reactivate it by using the Function key on the keyboard and the Fn key.

This process is different for each computer manufacturer.
If unsure which Function key enables and disables the touchpad, try each one at a time and then
attempt to use the touchpad after each one.

A...Locate the "Fn" key of the laptop keyboard.
The "Fn" key has different colored text or the key is a different color.
B...Locate the function (F1 through F12) key at the top of the keyboard that disables or enables the touchpad on the laptop.
The key typically has an icon that resembles a touchpad with a finger touching it or a touchpad with a diagonal line through it.
C...Press both the "Fn" and touchpad Function key at the same time to reactive the touchpad on your laptop.
Move your finger along the touchpad to verify that it works. Press the combination at any time to disable the touchpad again.
Note: Mac computers use "F2" to enable and disable the touchpad.
D. Sony Vaio Users: Start>Settings>Control Panel>Double click the Mouse icon.
Look at the top left hand side of the page, at the top and make sure that the "Tapping" box is unchecked, if it is checked then, you will uncheck it.
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Most likely your problem is that the touchpad was disabled. Enabling/disabling could be done in two ways:
1. press Fn and F9
2. in control panel, mouse, you will find the option regarding enabling/disabling touchpad (in some machines called internal pointing device)

power cucle your computer make sure that you turn off ther computer completely.

if still the same then you need to uninstall the youchpad driver under uninstall program. look for the Synaptics TouchPad Driver.

I check the model of your computer under the toshiba wesite and I found out that you have a synatipcs driver.

Then go to this link to download the driver
http://www.csd.toshiba.com/cgi-bin/tais/support/jsp/modelContent.jsp?ct=DL&os=&category=&moid=2175704&rpn=PSLB0U&modelFilter=L300-ST2501&selCategory=3&selFamily=1073768663

Note:
The touchpad still works even without the synaptics driver. Once you uninstall the touchpad driver and still yur having the same issue then it is a posible touchpad issue means the hardware itself.

You might have inadvertedly disabled the touchpad.

1. Press Fn + F9 to enable the touchpad.
This key combination acts as a switch, enabling or disabling the touchpad: press once to enable (if it is disabled), then press again to disable.

2. If the touchpad still doesn't respond, check the settings in the mouse control utility.
Click on the touchpad icon on the right side of the task bar if you see one or click Start button/Settings/Control Panel, select the Mouse icon and Press Enter.
Change the settings if necessary.

I WENT TO WINDOW UPDATE AND DOWN LOADED THE UPDATE FOR SYN TP DRIVERS AND THE ICON APPPERED IN THE ICON BAR AT BOTTOM RIGHT

Go to the Toshiba website and download updated Vista drivers for your touchpad, and you should be fine.

Toshiba usually set the keys Fn+F9 as the touchpad enable/disable - the touchpad software has to be running in the taskbar to allow this however.

hope this helps 8)