People from all over the world use McAfee because it provides robust and high-end security solutions for a range of devices like PC, Macs, iOS, and Android. However, users of McAfee may encounter errors while downloading, installing, or activating McAfee product. Most of these errors can be fixed by performing a couple of troubleshooting steps. If you are facing issues with the installation of McAfee antivirus then there are many possible reasons for this error. Here are some of the common reasons for installation failure. Go through them to get a better understanding of the error which will help you in fixing it.

Reasons For McAfee Installation Failure Error:-

  1. Incorrect McAfee product activation code.
  2. Bad or nonavailable internet connection
  3. Another version of McAfee security product installed on the system.
  4. Unclear cookies and browsing data.
  5. Incorrect login credentials for McAfee account.
  6. Third party security software causing incompatibility.

How To Fix McAfee Installation Error?

Before you proceed to follow methods and troubleshooting steps for fixing the McAfee error, ensure that you have a continual and strong internet connection. Moreover, verify if the device you are using is compatible with the minimum requirements and specifications needed by the software or not. Check the size and memory requirements of the software and clear up space on your hard drive accordingly. Only after you have taken care of these measures, proceed to perform the further steps for fixing the error.

If the installation has failed, go to Start and open the Control Panel. Go to programs and features. There you should uninstall any McAfee software product which is installed in your computer system. This will enable the execution of McAfee product installation. Or else, go to Start and type “run.” Write appwz.cpl in the Run dialog box and then click OK. A list of all the programs installed on the system will come. Pick out files and programs of McAfee and click on uninstall. When the process of un-installation is successful, restart your computer. Install the McAfee software again. Here are the steps for fixing McAfee Installation failure error:

Method 1:-

  1. Double click to open the Web browser.
  2. Conduct a search for Pre-install tool.
  3. Download the pre-install tool.
  4. Wait for the download to complete.
  5. Open the pre-install file extension tool by double clicking on it.
  6. Agreement and License page will be prompted.
  7. Go through it and mark agree.
  8. Click on OK to proceed.
  9. When the tool is successfully installed, reboot your computer system.

At this point, you should try to install the McAfee product software again. Pay close attention while entering the McAfee product activation key to avoid mistakes. There is another possibility that the windows account you are using to log in doesn’t have permissions. If the McAfee installation error still persists then follow the second method. The alternative method temporarily enables the in built administrator account. It permits the user to install the McAfee software program once more by using the account.

Method 2:-

  • Log into your system as the administrator.
  • Go to start and type exe in the search box.
  • Hover the mouse over the icon. Right click and from the displayed menu select Run as the administrator option.
  • Write “net user administrator/active:yes” when you get prompted to the subsequent page. Press Enter.
  • Close the command prompt and then enter the Ctrl+Alt+Del keys at once.
  • Sign out from Windows account.
  • Go to the log in screen and select it as the Administrator. The process of logging on takes a while to complete.

If the McAfee installation still fails on Windows then contact the McAfee antivirus support for a quick and efficient fix. The McAfee antivirus customer support is available 24/7 to troubleshoot all kinds of errors and issues. After redeeming the McAfee retail card, use the product activation key for McAfee activation. For more details, visit here. or

SOURCE :- McAfee-help

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