Some security or antivirus software might obstruct your installs. Turn off any security or
antivirus software to allow installation to proceed uninterrupted. Here is
how to turn off McAfee. In the Windows taskbar, first, click the "Start" button. Click "Properties" from the context menu of
the "Computer" icon. To access all of your hardware and its settings,
click the "Device Manager" link. Select "Show Hidden
Devices" from the "View" menu. Any hidden drivers, including
those for the McAfee antivirus program, are shown by this. Select
"Disable" from the pop-up menu when you right-click the
"NaiAvTdi1" driver. To confirm to stop the driver from loading, click
"Yes." To disable McAfee without deleting the software, restart your
computer.