Always download a new copy of MCPR before each use.Step 3: Download and run the McAfee Consumer Product Removal tool (MCPR) MCPR removes your existing McAfee product and 'leftover' files from previous installations that might cause installation problems.

IMPORTANT: If the installation is successful, follow the steps below to disable the built-in administrator account.

If installation fails, continue to Step 3. Try the installation again, following the steps in TS100342. On the logon screen, click the Administrator account and log on. The logon process might take longer than usual to complete.Click Log out or Sign out, to log off from of Windows.Press the CTRL+ ALT+ DEL keys together.At the prompt, type the following command and press ENTER:.In the search results, right-click Command Prompt, and select Run as administrator.

Click Start, and in the search box type cmd.exe.

Open a command prompt as Administrator:.

Follow these steps to temporarily enable the built-in Administrator account, then log on and try the installation with that account: Step 2: Temporarily enable the Administrator account The installation might fail because the Windows account that you log on with lacks permissions.

How to reinstall mcafee on windows 10