The setting of my touchpad has changed. i want to double click on touchpad to open file but i am struggling

Adjusting the touchpad sensitivity on a Gateway laptop lets you fix and prevent annoying touchpad problems.
Often the touchpad is accidentally brushed while typing, which causes the cursor to move out of place.
Or you may find yourself having to tap too hard or too often on the touchpad to open windows and programs.
These problems can be fixed by simply adjusting the touchpad's sensitivity settings.
Click the "Start" button and double-click "Control Panel."
Double-click "Hardware & Sound" and choose "Mouse" to open the mouse properties box.

Choose the "Device Settings" tab. Highlight "Synaptic Touchpad" in the Devices box by clicking on it. Click the "Settings" button underneath the Devices box.
Choose "Sensitivity" in the properties settings box.
Click "PalmCheck" to adjust the sensitivity of the touchpad to accidental brushes against the pad while typing, which causes the cursor to move.
Click and hold the pointer to adjust the setting on the sensitivity scale.

Click "Touch Sensitivity" to adjust the sensitivity of the touchpad to tapping.
Click and hold the pointer to adjust the setting on the sensitivity scale.
A higher rating on the scale means less tapping pressure will be needed.

Click "OK" to save your touchpad settings.

Like most modern laptops, IBM/Lenovo laptops feature a built-in touchpad that you can use as a substitute for an external mouse device. If you experience a non-functional or "locked" touchpad, then you have one of two possible problems; either the touchpad's drivers are corrupt or a user has manually locked the touchpad. In either case, you can unlock your touchpad and restore it to functionality quickly.

Open your web browser and paste the following URL in the address bar:

Click the "Download" button and then click "I agree" to save the Lenovo touchpad driver installation file to your computer. Double-click the EXE file that you downloaded. Doing so opens the driver's installation wizard. Follow the on-screen prompts to re-install your Lenovo's touchpad drivers. If your locked touchpad is due to a corrupt or outdated device driver, then your touchpad is now unlocked and functional. Activate Touchpad Hold the Windows logo key and press the R key to open a run command box. Type "control mouse" in the box and press Enter. The Mouse Properties control panel window opens. Click the "Device Settings" tab. Click the Lenovo Touchpad in the "Devices" list and click the "Enable" button to activate the Touchpad. Click the "OK" button to save your changes. Your Lenovo's touchpad is unlocked and ready for use. Lenovo support
http://consumersupport.lenovo.com/vn/en/DriversDownLoads/drivers_show_120.html

Go to the device manager and check that the driver is installed correctly.
Control panel>hardware and sound>device manager and find the mice and other pointing devices tab. Expand this and look for your touchpad driver. Right click and click properties. Under the general tab you can see if the driver is working properly. Click the drivers tab and click update driver.
Sometimes it is better to install a new driver, you will be able to find this on the Sony support website. Download the touchpad driver and save it to the desktop. Go to the touchpad driver in device manager and open the properties box again (right click>properties) and choose the driver tab. Click uninstall. Go to where you saved the new driver and double click to install. If its a zipped file, you will need to unzip to a folder before installing. Create a folder on the desktop called touchpad. Right click the downloaded file and click extract to: and choose the folder you created on the desktop. Once unzipped, open the touchpad folder, double click setup and follow instructions to install.

Nearly every modern laptop computer comes with a touchpad for on-screen interaction. Depending on your operating system and touchpad driver versions, you can update the speed, sensitivity, tap speed and clicking functions of your computer's touch pad. Accessing these settings and updating them to meet your needs is a quick and easy process with both the Microsoft Windows and Apple OS X operating systems.

Change Touchpad Settings in Windows1. Open the Control Panel by clicking the Windows Start button and selecting "Control Panel." Depending on your Windows configuration, this option may be located within the Start Menu's "Settings" sub-folder.
2. Double-click the Control Panel's "Mouse" icon.

3. Click the Touchpad tab. This tab can have one of several names, depending on your computer manufacturer, your operating system version and your device drivers. However, the most common labels include "Touch Pad," "Device Settings" and "Dell Touchpad." If you do not see any option resembling these, you may not be able adjust your laptop's touchpad settings. Refer to the "Warnings" section if this applies to your computer.

4. Locate the "Scrolling Settings" area within the touchpad properties tab. Adjust the settings to meet your needs and then click "OK" to close the dialog boxes and confirm your changes.

for MAC OS
1

Click the Apple menu and then select "Preferences."

2

Click the "Keyboard & Mouse" icon.

3

Select the "Trackpad" option from the top of the Keyboard & Mouse dialog box.

4

Adjust the trackpad settings to meet your needs, and then close the dialog box to confirm your changes.

1.Turn on the computer and log into Windows as normal. Open the "Start" menu and click on the option labeled "Control Panel."
2.Double-click on the icon labeled "Mouse.". The "Mouse Properties" window will open. Navigate to the tab labeled "Device Settings." Click on the button labeled "Settings." A window labeled "Properties" will appear.
3.Examine the left panel of the "Properties" window and expand the option labeled "Sensitivity." Click on the option labeled "Touch Sensitivity."
4.Reduce the touch sensitivity setting by moving the slider to the right, towards the "Heavy Touch" label. Experiment with different levels of sensitivity until you find one suited to your needs.
5.Click on the button labeled "OK" to close the "Properties" window; repeat with the "Mouse" control panel. Your new touchpad sensitivity settings are now saved.

You seem to be brushing against the touch pad while you're typing. You need to adjust the sensitivity of that touch pad:
Click on the "Start" icon in the lower left corner of the screen. Select "Control Panel." Next select "Mouse" under "Hardware and Sound." You can also left-click the touchpad while the cursor is anywhere on the desktop. From that screen, choose "Mouse Pointers." Select the "Buttons" tab at the top of the dialog box that opens. This shows the type of touchpad device installed on your laptop. Set the touchpad for right or left-handed use from this dialog box. You can adjust the double click speed of your computer as well. When you finish making any changes, click "Apply." Pick the "Device Settings" tab from the dialog box now. You can see the touchpad for your Vista machine highlighted on this screen. Select "Settings." Read the information provided in the next dialog box. It gives you options for tapping your touchpad, using the buttons, scrolling, pointer motion and sensitivity. Make any changes you want from the various topics. When you make a change, click "Apply." Click "OK" when you finish making all your changes. Do some work on your computer for a while. If the touchpad is still too sensitive, return to the "Mouse" menu and continue to adjust the settings until you get them just the way you want them.

1. Go to the "Control Panel" and double click on the "Mouse" item.
2. Go through the tabs in the "Mouse Properties" window & find the tab where you can set up your touchpad. This differs from laptop to another since it is based on the touchpad's drivers.
3. On that tab, check & make sure that your touchpad is enabled. If it is not, then change the setting to enabled.
4. Click "Apply" to apply the changes, then close the "Mouse Properties" window.

If you cannot find a tab to set up your touchpad, then your touchpad drivers might not be installed. In this case, you will need to install them first.

If the above does not work, then chance are that your touchpad's connector (which connects the device to the laptop's motherboard) is either loosely connected or not connected at all. You will need to open your laptop to be able to check & correct this.

Hello cskpuels,

It sounds like the touchpad is working ok but probably needs some setting(s) adjusted. The touchpad settings can be accessed through the windows control panel. But before going to the control panel it's useful to review the touchpad basics for single and double clicking. They are as follows:
•Tap once on the main touchpad for single click.
•Tap twice for double click.
•The lighter the touch, the better the response.
•Tapping harder will not increase the touchpad's responsiveness.

•Opening the Control Panel
The Windows Control Panel can be opened by:
Selecting *Start > Control Panel (on Windows Vista)
- OR -
Start > Run > Type 'Control' and select OK (on Windows XP)
*The Enter key may be used on the keyboard in place of touchpad clicking*

In the Control Panel, do the following:
•Select Mouse [Enter] (Brings up the touchpad properties sheet)
•Look at the Buttons tab in the touchpad properties sheet.
•Adjust the settings and test the touchpad until you get the response you desire.

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Have a great day,
martyshaw152

sounds like you need to adjust the sensitivity, as you can customize this to prevent accidental double taps.

you should have some software to configure your touchpad, this will either be from the manufacturer or you can use the "mouse settings" in control panel.

I am not sure if you're asking about how to change the settings to make a single tap on the touchpad function like double click. You can go to control panel>mice or touchpad.

If you're just asking how to do double click on the touchpad, by default, it's set to tapping the touchpad twice. You can change change the speed settings in control panel too.