Lenovo ThinkCentre E73z User Manual (English)

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Questions and Answers:

S
Sara MillerSep 12, 2025
What to do if Lenovo Desktop wireless keyboard is not working?
- B
  Bryan JordanSep 12, 2025
  If the wireless keyboard doesn't work on your Lenovo Desktop: * If the Transceiver Communications LED is on, restart your computer. * If restarting doesn't solve it, verify: batteries are properly installed and have current, the keyboard is within ten meters of the transceiver, and the transceiver is fully installed. * If the Transceiver Communications LED is off, reconnect the transceiver and the keyboard.
K
Karen MillerAug 25, 2025
What to do if Lenovo ThinkCentre E73z Desktop keyboard does not work?
- K
  kristina15Aug 25, 2025
  If the keyboard isn't working on your Lenovo Desktop, ensure: * The computer is turned on. * The keyboard is securely connected to a USB connector. * No keys are stuck.
J
Jamie OliverAug 25, 2025
How to troubleshoot Lenovo Desktop that cannot connect to the network?
- W
  William BergerAug 26, 2025
  If your Lenovo Desktop can't connect to the network, ensure that: * The cable is installed properly. * You are using the correct device driver. * The switch port and the adapter have the same duplex setting. * You have installed all networking software that is necessary for your network environment.
K
Karen ThomasAug 26, 2025
How to fix no audio in Windows on Lenovo ThinkCentre E73z Desktop?
- B
  Brittany WalkerAug 26, 2025
  If there's no audio in Windows on your Lenovo Desktop, try the following: * If using powered external speakers, ensure they are on and connected to a functional outlet. * Check the speaker volume control to ensure it's not too low. * Use the Windows volume mixer to verify that mute buttons aren't pressed and volume settings are adequate. * If your model has a front audio panel, check its volume. * Ensure external speakers (or headphones) are connected to the correct audio connector. * Confirm the program you're using is designed for Windows, or configured for SoundBlaster if it's a DOS program. * Verify that the audio device drivers are correctly installed.
D
Donald NelsonAug 27, 2025
Why does my Lenovo Desktop beep before starting?
- B
  briggssandraAug 27, 2025
  If your Lenovo Desktop beeps multiple times before the operating system starts, verify that no keys are stuck.
X
xbutlerSep 8, 2025
Why is DVD playback slow on my Lenovo Desktop?
- C
  Cassidy RoseSep 9, 2025
  If playback is very slow or choppy on your Lenovo Desktop, disable any background programs, such as AntiVirus or Desktop Themes.
J
johnporterSep 7, 2025
Why can't I start my Lenovo Desktop from a recovery CD?
- J
  Joel MartinSep 7, 2025
  If you're unable to use a bootable recovery medium to start your Lenovo Desktop, ensure that the CD or DVD drive is in the startup sequence before the hard disk drive. Note that on some models the startup sequence is permanently set and cannot be changed.
D
Deanna VargasSep 8, 2025
What to do if there is no audio while playing DVD movie on Lenovo ThinkCentre E73z?
- C
  Crystal BradleySep 8, 2025
  If you experience no audio or intermittent audio while playing a DVD movie on your Lenovo Desktop, check the volume control settings on your computer and speakers. Ensure the disc surface is clean and not scratched. Check all cable connections to and from the speakers. You can also use the DVD menu to select a different audio track.
M
Melissa KellySep 2, 2025
Why is my Lenovo ThinkCentre E73z mouse not working?
- P
  Patricia JohnsonSep 2, 2025
  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.
W
Wanda SilvaAug 31, 2025
Why does my Lenovo ThinkCentre E73z monitor go blank after inactivity?
- M
  Matthew WebbAug 31, 2025
  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.

Lenovo ThinkCentre E73z Specifications

General

Brand	Lenovo
Model	ThinkCentre E73z
Category	Desktop
Language	English

Summary

Important Safety Information

Service and Upgrades

Instructions for servicing and upgrading the computer, including customer replaceable units (CRUs).

Static Electricity Prevention

Precautions to avoid damage to computer components from static electricity.

Power Cords and Power Adapters

Guidelines for using power cords and adapters safely and correctly.

Extension Cords and Related Devices

Recommendations for using extension cords, surge protectors, and power strips.

Plugs and Outlets

Information on proper use of electrical plugs and outlets for the computer.

External Devices

Precautions for connecting and disconnecting external devices.

Heat and Product Ventilation

Basic precautions for ensuring proper heat dissipation and ventilation.

Laser Compliance Statement

Power Supply Statement

Warning regarding removal of covers on power supply components.

Tip-over Hazard Prevention Notice

Chapter 1. Product Overview

Features

Chapter 2. Using Your Computer

Navigating Among Screens

Chapter 3. You and Your Computer

Chapter 4. Security

Security Features

Overview of available security features like Computrace Agent and device control.

Attaching a Kensington-Style Cable Lock

Using and Understanding Firewalls

Protecting Data Against Viruses

Chapter 5. Installing or Replacing Hardware

Handling Static-Sensitive Devices

Precautions to prevent static-electricity damage when handling computer components.

Installing External Options

Replacing the Keyboard or Mouse

Chapter 6. Recovery Information

Recovery Information for Windows 7

Details on recovery solutions for the Windows 7 operating system.

Creating and Using Recovery Media

Steps to create and use recovery media for system restoration.

Performing Backup and Recovery Operations

Guidance on using Rescue and Recovery for backup and restore functions.

Using the Rescue and Recovery Workspace

How to use the Rescue and Recovery workspace for system recovery.

Reinstalling Preinstalled Applications and Device Drivers

Instructions for reinstalling factory-installed applications and device drivers.

Solving Recovery Problems

Recovery Information for Windows 8 or 8.1

Details on recovery solutions for Windows 8 and 8.1 operating systems.

Refreshing Your Computer

Steps to refresh the computer without affecting personal files.

Resetting Your Computer to Factory Defaults

Instructions to reset the computer to its original factory settings.

Using the Advanced Startup Options

Recovering OS if Windows 8/8.1 Fails to Start

Procedure to recover the operating system when it fails to start.

Chapter 7. Using the Setup Utility Program

Starting the Setup Utility Program

Steps to start the Setup Utility program for computer configuration.

Viewing and Changing Settings

How to view and modify system configuration settings in the Setup Utility.

Using Passwords

Information on setting passwords (Power-On, Administrator, Hard Disk) in BIOS.

Enabling or Disabling a Device

Selecting a Startup Device

Procedure for selecting temporary or changing the startup device sequence.

Chapter 8. Updating System Programs

Updating (Flashing) the BIOS from a Disc

Updating (Flashing) the BIOS from Your Operating System

Chapter 9. Preventing Problems

Keeping Your Computer Current

Getting the Latest Device Drivers

Chapter 10. Troubleshooting and Diagnostics

Basic Troubleshooting

Initial checks for common computer startup and display issues.

Troubleshooting Procedure

A systematic procedure for diagnosing and resolving computer problems.

Audio Problems

Solutions for issues related to no audio or sound from one speaker.

CD Problems

Troubleshooting steps for issues with CD drives and media.

DVD Problems

Solutions for issues like black screens or playback problems with DVD movies.

Intermittent Problems

Keyboard, Mouse, or Pointing Device Problems

Troubleshooting steps for non-functional keyboards, mice, or pointing devices.

Monitor Problems

Solutions for monitor issues such as flickering or discolored images.

Networking Problems

Guidance for common networking issues, including Ethernet and wireless LAN.

Option Problems

Performance and Lockup Problems

Solutions for issues related to slow performance or system lockups.

Printer Problems

Software Problems

USB Problems

Chapter 11. Getting Information, Help, and Service

Calling for Service

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Lenovo ThinkCentre E73z User Manual

Table of Contents