Mcafee is widely used security software for home users, and in fact one of the oldest. While installing we seldom face errors because of problems with computer configuration or corrupt installer.

If you are facing McAfee installation incomplete error, there are several causes of McAfee installation incomplete error, however you must check if you fall under the category below, before following troubleshooting steps.

Cause of McAfee installation incomplete error:

1.

McAfee Activation code is incorrect

2.

Poor or no internet connection

3.

Already have another version of McAfee antivirus

4.

vague cookies and browsing data

5.

Incorrect McAfee Account login details

6.

Incompatible security software is installed

How to fix McAfee error: Installation Incomplete?

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

Since the installation is failed, go to the Control panel > Program and Features and uninstall any of the McAfee product installed to execute the appropriate installation. Alternatively, click on the start or Windows icon and type run. In the Run dialogue box, type appwiz.cpl and click OK. You will have a list of programs installed on your computer; find any file/program from McAfee and choose to uninstall the software. After you are done with un-installation, try to install the software again. However to make sure McAfee is completely uninstalled and there is no trace of Mcafee from older installation you should run tool called as Mcafee consumer product removal tool or MCPR.  Below are the steps to troubleshoot McAfee Installation incomplete error.

(Note: Steps might slightly differ depending on the web browser and its version you are using)

Method 1:

1.

Open your Web browser and search and download for Pre-install tool

2.

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

3.

Double-click the pre-install tool file extension

4.

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

5.

After the tool is installed completely, restart your computer

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

Method 2:

1.

First and foremost, you need to command as Administrator

Click on Windows icon and type cmd.exe in the search bar 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 Enter

3.

Now, shut the command prompt and press CTRL+ALT+ DEL Key altogether

4.

Select to Log out or sign out to safely your exit from your Windows account and perform steps manually

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 longer to complete. In case, this method also fails to fix this McAfee error, you may opt the third method to solve the error.

Method 3:

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

1.

Try to download the software again, reinstall it and wait while the process is undergoing

2.

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

3.

Once done with the downloading or installing, restart your PC

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