What to do if Lenovo ThinkCentre E73z mouse or pointing device does not work?
If the mouse or pointing device doesn't work on your Lenovo Desktop, verify that the cable is securely attached to the correct connector. Also, ensure that the device drivers are installed correctly. If using a USB keyboard or mouse, verify that the USB connectors are enabled in the BIOS.
Why are some keys not working on my Lenovo Desktop keyboard?
If some or all keys on your Lenovo Desktop keyboard aren't working, verify that the keyboard cable is securely connected to the correct connector on the computer. If you're using an Enhanced Performance USB keyboard, and only the Rapid Access buttons aren't working, they might be disabled or unassigned. Use the help system in the Enhanced Performance Customization Keyboard program to diagnose these buttons.
Why will my DVD movie not play on Lenovo ThinkCentre E73z?
If a DVD movie won't play on your Lenovo Desktop, ensure that the disc surface is clean and not scratched. Also, check the disc or package for regional coding; you might need a disc coded for your region.
How to fix Lenovo ThinkCentre E73z Desktop that does not start?
If your Lenovo Desktop doesn't start when you press the power switch, check the following: * Ensure the power cord is correctly connected to the rear of the computer and a working electrical outlet. * If there's a secondary power switch at the rear, make sure it's on. * Check if the power indicator on the front is lit. * Confirm the computer voltage matches the outlet voltage for your region.
Why is my Lenovo ThinkCentre E73z mouse not working?
If the mouse isn't working on your Lenovo Desktop, make sure that: * The computer is turned on. * The mouse is securely connected to a USB connector on the computer. * The mouse is clean.
Why is my Lenovo Desktop screen flickering?
If the image on your Lenovo Desktop monitor appears to be flickering, the monitor might be operating in a low-refresh rate display mode. Set the monitor to the highest, noninterlaced refresh rate supported by your monitor and the video controller in your computer. The monitor might also be affected by interference from nearby equipment. Move fluorescent desk lighting or any equipment that produces magnetic fields farther away from the monitor.
Why does my Lenovo ThinkCentre E73z monitor go blank after inactivity?
If the monitor works initially but goes blank after inactivity on your Lenovo Desktop, the computer is probably set for energy savings. Disabling or changing the power-management feature settings might solve the problem.
How to fix 'No Operating System Found' on Lenovo ThinkCentre E73z Desktop?
If you see a "No Operating System Found" message or the system is not starting from the correct hard disk drive on your Lenovo Desktop, ensure that all hard disk drive signal cables and power cables are connected correctly. Ensure that the hard disk drive your computer starts from is listed as the first startup device in the Setup Utility program. In rare cases, the hard disk drive with the operating system might get corrupted or damaged, requiring replacement.
Why do I see a black screen when playing DVDs on Lenovo ThinkCentre E73z Desktop?
If you see a black screen instead of DVD video on your Lenovo Desktop, restart the DVD player program. If that doesn't work, close any open files, turn off the computer, and then restart it. You can also try a lower screen resolution or color depth.
What to do if Lenovo ThinkCentre E73z operating system does not start?
If the operating system on your Lenovo Desktop doesn't start, verify that the startup sequence includes the device where the operating system resides, usually the hard disk drive.
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