DELL LATITUDE E6420 Maintenance Tips Dell Latitude Dell E6420 Manual
Fix Touch Issues • Clean the LCD screen. • When you have installed a screen protector, it may be preventing the touch screen from registering that you are touching the screen and may need to be removed When you have installed a screen protector, it may be preventing the touch screen from registering that you are touching the screen and may need to be removed. • Shut down and restart the computer • Calibrate the touch screen.
Fix Window Issue • Verify the computer finishes initial power-up (POST) • Unplug All External Devices • Check for specific error messages • Reset the BIOS to default values • Run a Computer Diagnostic • Reset your Windows operating system • Virus and malware troubleshooting • Restore the operating system to factory settings
Fix Internet Connectivity Issues • Move the computer to within 3-9 feet (1-3 meters) of the router (if possible). • Make sure that the wireless antenna is on. • Run the Network Troubleshooter. • Turn off and then turn on all the devices on the network to reboot and synchronize them. • Make sure the most current wireless drivers, computer BIOS and router firmware are installed.
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