Px Engine Device Driver For 64-bit Windows
The "PX Engine" (often pxhelp20.sys or pxengine.sys ) is a piece of hardware. It is a kernel-mode driver developed by Sonic Solutions (later acquired by Roxio).
No, it is a legitimate legacy driver. However, because it loads in kernel mode and is unsigned, many antivirus tools flag it as a potentially unwanted program (PUP) or riskware. It is not a virus, but it can destabilize your system. px engine device driver for 64-bit windows