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McAfee Antivirus Installation Error

When you try to download and install McAfee LiveSafe, Total Protection, or one of our other Windows security products of Mcafee, the installation fails with the following error message:

Error Messages:

 Installation Incomplete

 "Unable to continue Installation"

Causes of mcAfee antivirus installation error:

1.McAfee Activation code is incorrect.

2.Poor/slow or no internet connection.

3.Already have another version of McAfee antivirus software.

4.Vague cookies and browsing data

5.Incorrect McAfee Account log in details.

6.Incompatible security software package is installed.

Steps to easily fix McAfee Antivirus Installation Error

However, before you start to follow methods or troubleshooting steps to fix McAfee antivirus installation error, make sure you have continues internet connection with strong signal strength. Also, check whether your system is compatible with the software specification or not. Clean up some space from your PC according to the security software’s requirement. After taking all the measures, you can perform any basic or compound step to fix this error.

Since the installation is failed, go to the Control panel > Program and Features and uninstall any of the McAfee software product installed to execute the appropriate installation. Alternatively, click on the start icon or Windows icon and type run. In the Run dialogue box, type appwiz.cpl and click on OK. You will have a list of programs installed on your PC; find any file/program from McAfee package and choose to uninstall the software. After you are done with un-installation, try to install that software again. Steps are given to troubleshoot McAfee Installation incomplete error.

Method 1:

1.Open your Internet Web browser and search for download of Pre-install tool.

2.Download and save the file at any temporary location such as desktop.

3.Now, double-click on the pre-install tool file extension

4.You will be prompted for the Agreement and license page. Read and mark agree or click on OK to step ahead.

5.After the tool is installed completely, restart your PC.

Now, try to install McAfee software again. Now pay attention while you put McAfee activation key. In another possible case, the windows account you have logged in with lacks permissions of fullfilling. If you still encounter McAfee installation error- incomplete, then you can proceed to the alternative method. Following the method given below will temporarily enable the built-in Administrator account and It will let you install McAfee antivirus again using the your mcafee account.

Method 2:

1.Firstly, you need to command as Administrator·

Click on Windows icon and type cmd.exe in the search icon appeared at the bottom·

Hover over the icon, click right and from the menu displayed, choose Run as administrator option

2.When you are prompted to the next page, type ‘’ net user administrator /active: yes and click on Enter.

3.Now, you have to shut the command prompt and press CTRL+ALT+ DEL Key altogether.

4.click on Log out or sign out to safely to exit from your Windows account and perform all steps manually.

Now, click on the logo screen and choose to it as Administrator. Wait for a while as the process of log on process might take a little bit longer to complete. In case, this method also fails to fix this McAfee error, you may opt out for the third method to solve the error.

Method 3:

If your McAfee product is taking too much time to download or install, try following these steps. Try to download the McAfee security software product again and wait until the installation process is completed.

1.You can try to download the software again, reinstall it and wait while the process is completed.

2.If your attempt to download McAfee fails again, restart your computer and try downloading the mcafee software from another website or visit the link - http://McAfee.com/Activate

3.Once done with the downloading or installing, restart your computer.

You can redeem McAfee retail card and use the activation key to get McAfee activate. Updated mcafee security software will reduce the risk of trojan attack and virus risks. Also, provide real-time security. To learn more, visit the page - http://McAfee.com/Activate