How to Fix If McAfee Not Installing Due to Javascript Error?

McAfee antivirus is one of the best antivirus software available in the market and can install via It gives protection from malicious files and folders which contain viruses. When you install McAfee antivirus software in your device, then it will scan your device from time to time and protect your files and folders from malware. But sometimes users encounter issues, while using McAfee product. So, in this blog you will read the solution to fix McAfee Not Installing Due to Javascript Error.

Method to Resolve McAfee Not Installing Due to Javascript Error:

Causes of McAfee not installing due to Javascript Errors:

This McAfee not installing due to Javascript error occur if the JavaScript in your device is missing or it becomes corrupt.

Method to Resolve McAfee Not Installing Due to Javascript Error:

Method 1: Run the Preinstall Tool on our device:

  1. First, you have to download the Preinstall tool from the internet.
  2. Now, you have to save the exe file in your computer or in any other place where you can easily access it.
  3. Then, you have to double-tap on the exe file in order to run it in your device.
  4. Here, you have to follow the on-screen instruction which are provided on the screen and then tap on Finish button.
  5. When the Preinstall Tool is installed itself successfully, then hit on OK button.
  6. Next, you have to tap on Close button.
  7. At the end, you should Restart your computer when you installed the Preinstall tool successfully.

Method 2: Repair Client-Side Scripting i.e. JavaScript:

  1. For this, first you have to hit on the Start button which is present at the bottom on your computer screen.
  2. Now, you should visit to the search box which displays at the bottom of the screen.
  3. Then, you have to type cmd in the search box.
  4. Here, you should right-tap on the command in the search results and then tap on Open as Administrator.
  5. At this point, you should type the commands one by one in the command prompt window and press enter after each typing the each command.

regsvr32 jscript.dll

regsvr32 vbscript.dll

regsvr32 scrrun.dll

After you type these commands, the user will get the success or failure result. 

Through this way, the user can fix McAfee Not Installing due to Javascript Error. If the customer require any sort of help in fixing the issue, then they can go to the site of McAfee via