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Antivirus programs help prevent viruses and spyware from infecting a computer and therefore are one of the essential software programs each computer should have running at all times. There are thousands of viruses and spyware on the Internet, and any one of them can cause damage to personal files or the computer's operating system.
If your computer does not have an antivirus program installed and running, we highly recommend you install one today. Follow the steps below for help on how to install and update an antivirus program on your computer.
TipAll new versions of Microsoft Windows now include Windows Defender to help protect your computer from viruses.
Install the antivirus program
To install an antivirus program on your computer, follow the steps below.
- If you purchased the antivirus program from a retail store, insert the CD or DVD into the computer's disc drive. The installation process should start automatically, with a window opening to help guide you through the install process.
- If you downloaded the antivirus program on the Internet, find the downloaded file on your computer. If the downloaded file is a zip file, unzip the file to extract and access the installation files. Look for a file named setup.exe, install.exe, or something similar, then double-click that file. The installation process should start, with a window opening to help guide you through the install process.
- In the installation process window, follow the steps provided to install the antivirus program. The install process provides recommended options so the antivirus program will function properly, which in most cases can be accepted as is. The one exception is if the install process recommends to install any toolbars for Internet browsers or other helpful programs for your computer. If prompted to install other software along with the antivirus program, uncheck all boxes or decline the install of those extra programs. No additional programs should be needed for the antivirus program to install and run successfully on your computer.
- When the install process is complete, close out of the install window.
- If used, remove the CD or DVD from the computer's disc drive.
The antivirus program is now installed and ready to use. While it may not be required, we recommend restarting your computer so that any modified settings in the operating system can take effect correctly.
Update the antivirus program after installation
Out of the box, antivirus programs are not up-to-date and are missing the latest virus and spyware definitions. Without the latest definitions, the antivirus program will not know about the most recently created viruses and spyware, making your computer vulnerable to an infection.
After installing the antivirus program, we highly recommend you update it with the latest virus and spyware definitions. The updates allow the antivirus program to protect your computer from all viruses and spyware.
In many cases, the antivirus program automatically checks for and installs the latest updates. If prompted to do so, select Yes to update the antivirus program. If it does not prompt you to update immediately.
Enable automatic updates for the antivirus program
By default, most antivirus programs enable the automatic update feature. We strongly recommend automatic updates be enabled to keep the antivirus program up-to-date at all times.
Improve your calling experience and call control by updating the Phone app for your Android 7.0 (Nougat) or newer device. You'll get Call Screen, Google Duo video calling, spam protection, and caller ID. CALL SCREEN Avoid unwanted calls - Screen spam, scams and other unwanted calls. Get real-time transcription and block unwanted callers so you never hear from them again. Make free calls or talk and text via Wi-Fi or cellular data without using cell minutes with Talkatone! Text and call from anywhere you are and keep in touch with loved ones everywhere! Call friends and family to stay in touch even during stay at home. Free calls and text messages help you keep connected no matter how far apart you are, so you'll never have to feel alone. Houseparty with Dingtone group chat! Dingtone, a free calling app allows you to make unlimited free phone calls, send free text messages to anyone. Dingtone also gives you a free number as 2nd line, a real phone number with local area code for free calling and free texting. Free phone apps.
To check if automatic updates are enabled in your antivirus program, follow the general steps below.
Install Antivirus Software
- Open the antivirus program.
- Look for a Settings or Advanced Settings button or link in the antivirus program window. If you do not see either option, look for an option like Updates or something similar.
- In the Settings or Updates window, look for an option like Automatically download and apply updates. It may also refer to virus definitions instead of updates.
- For the automatic updates option, check the box for that option, if not already checked.
- Click the Save or Apply button to save the settings change.
Additional information
Install Antivirus Avast
- In the installation process window, follow the steps provided to install the antivirus program. The install process provides recommended options so the antivirus program will function properly, which in most cases can be accepted as is. The one exception is if the install process recommends to install any toolbars for Internet browsers or other helpful programs for your computer. If prompted to install other software along with the antivirus program, uncheck all boxes or decline the install of those extra programs. No additional programs should be needed for the antivirus program to install and run successfully on your computer.
- When the install process is complete, close out of the install window.
- If used, remove the CD or DVD from the computer's disc drive.
The antivirus program is now installed and ready to use. While it may not be required, we recommend restarting your computer so that any modified settings in the operating system can take effect correctly.
Update the antivirus program after installation
Out of the box, antivirus programs are not up-to-date and are missing the latest virus and spyware definitions. Without the latest definitions, the antivirus program will not know about the most recently created viruses and spyware, making your computer vulnerable to an infection.
After installing the antivirus program, we highly recommend you update it with the latest virus and spyware definitions. The updates allow the antivirus program to protect your computer from all viruses and spyware.
In many cases, the antivirus program automatically checks for and installs the latest updates. If prompted to do so, select Yes to update the antivirus program. If it does not prompt you to update immediately.
Enable automatic updates for the antivirus program
By default, most antivirus programs enable the automatic update feature. We strongly recommend automatic updates be enabled to keep the antivirus program up-to-date at all times.
Improve your calling experience and call control by updating the Phone app for your Android 7.0 (Nougat) or newer device. You'll get Call Screen, Google Duo video calling, spam protection, and caller ID. CALL SCREEN Avoid unwanted calls - Screen spam, scams and other unwanted calls. Get real-time transcription and block unwanted callers so you never hear from them again. Make free calls or talk and text via Wi-Fi or cellular data without using cell minutes with Talkatone! Text and call from anywhere you are and keep in touch with loved ones everywhere! Call friends and family to stay in touch even during stay at home. Free calls and text messages help you keep connected no matter how far apart you are, so you'll never have to feel alone. Houseparty with Dingtone group chat! Dingtone, a free calling app allows you to make unlimited free phone calls, send free text messages to anyone. Dingtone also gives you a free number as 2nd line, a real phone number with local area code for free calling and free texting. Free phone apps.
To check if automatic updates are enabled in your antivirus program, follow the general steps below.
Install Antivirus Software
- Open the antivirus program.
- Look for a Settings or Advanced Settings button or link in the antivirus program window. If you do not see either option, look for an option like Updates or something similar.
- In the Settings or Updates window, look for an option like Automatically download and apply updates. It may also refer to virus definitions instead of updates.
- For the automatic updates option, check the box for that option, if not already checked.
- Click the Save or Apply button to save the settings change.
Additional information
Install Antivirus Avast
- See our antivirus and virus definitions for further information and related links.
