McAfee's suite of antivirus services have come pre-installed on Windows computers for a long time. I don't use the product, but I frequently have to use computers that have had Windows installed with McAffee pre-bundled somehow. I've often struggled to completely remove all of the components of their software packages. I recently picked up a new laptop with Windows 8.1 - my first time using this version of Windows for a laptop. I was dismayed to find McAffee preinstalled. I will say this for them - they have gotten better since the last time I went through this many years ago. Better, as in uninstalling using the utility provided by McAfee did not break Windows. The uninstaller still left bits of McAffee's software behind, though. Specifically, what gets left behind is the McAfee Update Manager; a utility designed to download applications from the McAfee corporate servers and install those applications on your computer with minimal human intervention. Registry