How to remove an pfc error
Pfc.sys is a Windows driver. A driver is a small software program that allows your computer to communicate with hardware or connected devices. This means that a driver has direct access to the internals of the OS, hardware etc.
The free file information forum can help you determine if pfc.sys belonging to the Windows system or an application you can trust.
Pfc.sys file information
Description: The file pfc.sys is located in the folder C:\Windows\System32\drivers.
Known file sizes on Windows 7/XP are 10,368 bytes (48% of all occurrences), 9,856 bytes and 8 more variants.
The driver can be started or stopped from Services in the Control Panel or by other programs. The program is not visible. There is no detailed description of this service. The file is not a Windows system file. pfc.sys seems to be a compressed file. Therefore the technical security rating is 38% dangerous, however also read the users reviews.
There is a possibility to do the following:
1) completely remove Adobe Audition or CDRWIN 5 (Control Panel⇒Add/Remove programs)
2) visit the Adobe support page 
3) search for an update on the vendor’s website.
Recommended: Identify pfc.sys related errors
Important: Some malware camouflages itself as pfc.sys, particularly when located in the c:\windows or c:\windows\system32 folder. Therefore, you should check the pfc.sys process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.
Not these drivers on any microsoft os
Peet (further information)
Ooops (further information)
Security Task Manager shows all running Windows tasks including embedded hidden functions (e.g. keyboard or browser monitoring, autostart entry). A unique security risk rating indicates the likelihood of the process being potential spyware, malware, keylogger or a Trojan.
MalwareBytes detects and removes sleeping spyware, adware, trojans, keyloggers, malware and tracking threats from your hard disk. Ideal supplement to Security Task Manager.
SpeedUpMyPC scans, cleans, repairs and optimizes your computer.
hpwuschd2.exe conhost.exe dmiehlp.dll pfc.sys navshext.dll nmbgmonitor.exe contributeieplugin.dll asfsipc.dll avp.exe setpoint.exe logitechdesktopmessenger.exe [all]