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1. Click "Start," "Turn Off Computer" and then "Restart", if it is on.
If your computer is off, turn it on by pressing the power button above
2. Press the "F2" function key on your computer's keyboard to enter the BIOS utility.
3. Use the laptop's right arrow key to scroll to "Main." Confirm that
the "D2D Recovery" is "Enabled." If the D2D option is "Disabled," scroll
down to the option using the down arrow key. Press "Enter" to change the option to "Enabled."
4. Use the laptop's right arrow key to scroll to "Exit." The "Exit
Saving Changes" option will be highlighted. Press "Enter" to save the
settings and exit the BIOS utility. Your Acer Aspire will restart.
Reformatting the Acer Aspire
1. Press the "ALT" and "F10" keys together while your computer is
restarting and the Acer logo is showing to enter the Acer Aspire's
2. Follow the on-screen prompts. Your laptop's hard drive will reformat
and the original applications will be reinstalled. Your computer will
restart after the reformatting process is complete.
3. Enter your name and other personal information when prompted during the Windows operating system setup process.
attached a USB or PS/2 keyboard with your laptop and goto control panel and double click on add or remove software select the software which you can installed & delete it. Actually this fault reason virus or otherwise reinstall your operating system.
This usually works for most device problems. Go to the device manager and scroll down to the mice and pointing devices as well as the keyboard. If the keyboard and the touchpad are listed in the device menu, then you can right click on the device and click on update driver. Windows will search update for a fresh driver. If the devices are not listed, then go to Acer support (link below) put in the model of the laptop....Aspire > 1640Z and a list of downloads will come up. Download the drivers for the keyboard and /or touchpad. After they are downloaded, run the apps, they usually self install.
If they are listed in the device manager (device manager is in the control panel....in XP, look in the system flder under the hardware tab.) and the above fix does not work, then scroll down to them and when you right click, Hit un-install, but keep the drivers. Do this one at a time and let the system reboot after each uninstall. Windows will detect the device and load the driver for it.
I don't have the diagram but i can give you direction.
1. remove the power cover first (where power button is), it might have 3 screw that hold, if there is 3 screw on the power cover, remove it first.
2. after your removed the power cover, you can see the screw that hold keyboard. remove that screw and you can remove the keyboard.
Try tapping the keyboard when it does it, the connector is under the keyboard, if that works then the keyboard end o the connector is loose, i it changes when touching the screen the connector at that end could be loose, have you dropped it?