What is pci?
Pci.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 pci.sys belonging to the Windows system or an application you can trust.
Pci.sys file information
Description: The original pci.sys is an important part of Windows and rarely causes problems. pci.sys is located in the folder C:\Windows\System32\drivers.
Known file sizes on Windows 7/XP are 68,224 bytes (75% of all occurrences), 68,608 bytes, 68,736 bytes, 151,096 bytes or 62,976 bytes.
The driver can be started or stopped from Services in the Control Panel or by other programs. The file is a Windows system file. The program has no visible window. Pci.sys is a Microsoft signed file. There is no detailed description of this service. pci.sys seems to be a compressed file. Therefore the technical security rating is 3% dangerous, however also read the users reviews.
Recommended: Identify pci.sys related errors
Important: Some malware disguises itself as pci.sys, particularly when not located in the C:\Windows\System32\drivers folder. Therefore, you should check the pci.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.
Matt (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.
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