How to Download and Fix pci.sys?

Sometimes Windows system displays error messages regarding corrupted or missing pci.sys files. Situations like that can occur, for example, during a software installation process. Each software program requires certain resources, libraries, and source data to work properly. Corrupted or nonexistent pci.sys file can therefore effect in failed execution of the started process.

pci.sys file NT Plug and Play PCI Enumerator. The file was developed by for use with software. Here you will find detailed information about the file and instructions how to proceed in the event of pci.sys related errors on your device. You can also download pci.sys file compatible with Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista, Windows Vista, Windows Vista, Windows XP devices which will (most probably) allow you to solve the problem.

Compatible with: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista, Windows Vista, Windows Vista, Windows XP

User popularity

3.1 Scanning for malicious software
3.2 System and driver update
3.3 System File Checker tool
3.4 System recovery

4 Download pci.sys

4.1 List of pci.sys file versions

File info

General information
Filename	pci.sys
File extension	SYS
Description	NT Plug and Play PCI Enumerator

Software
Program	Microsoft® Windows® Operating System
Author	Microsoft Corporation

Details
MIME type	application/octet-stream
File type	Dynamic link library
System	Windows NT 32-bit
Copyrights	© Microsoft Corporation. All rights reserved.
Character set	Unicode
Language cod	English (U.S.)

Most common pci.sys file related problems

There are various types of errors related to pci.sys file. pci.sys file may be located in wrong file directory on your device, may not be present in the system, or may be infected with malicious software and therefore not work correctly. Below is a list of most common error messages related to pci.sys file. If you encounter one listed below (or similar), please consider the following suggestions.

pci.sys is corrupted
pci.sys cannot be located
Runtime Error - pci.sys
pci.sys file error
pci.sys file cannot be loaded. Module was not found
cannot register pci.sys file:
pci.sys file could not be loaded
pci.sys file doesn't exist

pci.sys

Application could not be started because pci.sys file is missing. Reinstall the application to solve the problem.

Problems related to pci.sys can be addressed in various ways. Some methods are meant only for advanced users. If you don't have confidence in your skills, we suggest consulting a specialist. Fixing pci.sys file errors should be approached with utmost caution for any mistakes can result in unstable or unproperly working system. If you have the necassary skills, please proceed.

How to fix pci.sys errors in just few steps?

Remember, before taking any action related to system files perform a backup copy of your data!

pci.sys file errors can be caused by various factors, so its is beneficial to try to fix them using various methods.

Step 1: Scan your computer for any malicious software

Windows files are commonly attacked by malicious software that prevents them from working properly. First step in addressing problems with pci.sys file or any other Windows system files should be scanning the system for malicious software using an antivirus tool.

If by any chance you don't have any antivirus software installed on your system yet, you should do it immediately. Unprotected system is not only a source of file errors, but, more importantly, makes your system vulnerable to many dangers. If you don't know which antivirus tool to choose, consult this Wikipedia article – comparison of antivirus software.

Step 2: Update your system and drivers.

Installing relevant Microsoft Windows patches and updates may solve your problems related to pci.sys file. Use dedicated Windows tool to perform the update.

Go to the Windows "Start" menu
Type "Windows Update" in the search field
Choose the appropriate software program (name may vary depending on your system version)
Check if your system is up to date. If any unapplied updates are listed, install them immediately.
After the update has been done,restart your computer in order to complete the process.

Beside updating the system, it is recommended that you install latest device drivers, as drivers can influence proper working of pci.sys or other system files. In order to do so, go to your computer or device producer's website where you will find information regarding latest driver updates.

Step 3: Use System File Checker (SFC) tool

System File Checker is a Microsoft Windows tool. As the name suggests, the tool is used for identyfing and addressing system file related errors, including those related to pci.sys file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the pci.sys file with properly working version. To use the tool:

Go to the Windows "Start" menu
Type "cmd" in the search field
Locate "Command Prompt" result – don't run it yet:
Click the right mouse button and select "Run as Administrator" option
Type "sfc /scannow" in console prompt to start the program and follow the instructions

Step 4: Restoring Windows system

Another approach is to restore system to previous state, before the pci.sys file error occured. In order to restore your system, follow the instructions below

Go to the Windows "Start" menu
Type "System Restore" in the search field
Start the system restore tool – it's name may differ depending on version of the system
The application will guide you through the process – read the messages carefully
After the process has finished, restart your computer.

If all the above-mentioned methods failed and the pci.sys file problem has not been resolved, proceed to the next step. Remember that the following steps are intended only for advanced users.

Download and replace pci.sys file

The last solution is to manually download and replace pci.sys file in appropriate folder on the disk. Select file version compatible with your operating system and click the "Download" button. Next, go to your web browser's "Downloaded" folder and copy the downloaded pci.sys file.

Go to the folder where the file should be located and paste the downloaded file. Below is the list of pci.sys file example directory paths.

Windows 10: C:\Windows\System32\drivers\
Windows 8.1: C:\Windows\System32\drivers\
Windows 8: 1: C:\Windows\System32\drivers\
Windows 7: ---
Windows Vista: ---
Windows Vista: ---
Windows Vista: ---
Windows XP: ---

If the steps did not solve your pci.sys file problem, you should consult a professional. A probability exists that the error(s) might be device-related and therefore should be resolved at the hardware level. A fresh operating system installation might be necessary – a faulty system installation process can result in data loss.

File versions list

Filename pci.sys

System Windows 10

File size 266656 bytes

Date 2017-03-18

Download

File details
	MD5	fde1ca47c0d5a770c6ee26d98c1a358e
	SHA1	96b3c7079a2da54c2c0c575c2b365dd2c776b99e
	SHA256	5ed02a05f6eaec9e8ca25af60d1b7f2f0ddce3acb6500a9d1bff81f122da84f2
	CRC32	903c2f63
	Example file location	C:\Windows\System32\drivers\

Filename pci.sys

System Windows 8.1

File size 211776 bytes

Date 2014-11-21

Download

File details
	MD5	0a2bbe5e87374a32e4b1a5eee582ae6c
	SHA1	c96317ebe6f39f046d7b23b0758c4cfad586ef3a
	SHA256	8a2689e73ecae8a135207ef0ea305a7996d45d4d0dbe8a13d5f6405b0440675e
	CRC32	f61843df
	Example file location	C:\Windows\System32\drivers\

Filename pci.sys

System Windows 8

File size 191216 bytes

Date 2012-07-26

Download

File details
	MD5	ea828c84c8948d0e4994c1e0a45eb05f
	SHA1	954af129a3275a36492bfeebb0e52a8921311a12
	SHA256	5b6bb5aa870bc2f46ca8e037b21dc0b9748c2d26e3c2c9079330302783fac5b9
	CRC32	ff5ee78c
	Example file location	1: C:\Windows\System32\drivers\

Filename pci.sys

System Windows 7

File size 184704 bytes

Date 2010-11-21

Download

File details
	MD5	94575c0571d1462a0f70bde6bd6ee6b3
	SHA1	6c84ec221bb3eea63800c1c1a7578d2f21b2a5ca
	SHA256	7139bac653ea94a3dd3821cab35fc5e22f4cca5acc2baabdaa27e4c3c8b27fc9
	CRC32	549f397f
	Example file location	---

Filename pci.sys

System Windows Vista

File size 179768 bytes

Date -0001-11-30

Download

File details
	MD5	2a5b2a51559066ea84742909b5b2cd69
	SHA1	fd886e553218ae467b0a08cb7ba71027043b3314
	SHA256	62ace27dd439d28fa0fa9a701443a25edf9bc390bbb25332fc04bf3377795053
	CRC32	f72ab479
	Example file location	---

Filename pci.sys

System Windows Vista

File size 178664 bytes

Date 2009-04-11

Download

File details
	MD5	47ab1e0fc9d0e12bb53ba246e3a0906d
	SHA1	ca8bb2d627f79924aea17c7bb259d867dde27ba0
	SHA256	82b452d614b535fad3afeea06dfbbf8f7c5031563a2558cfa04f9b94c76e45df
	CRC32	af919c45
	Example file location	---

Filename pci.sys

System Windows Vista

File size 167016 bytes

Date -0001-11-30

Download

File details
	MD5	6b548f2e0b623d0f0fa16200b6d32d43
	SHA1	e416f0f059579786b7d2d160d5b4fed977773b05
	SHA256	aa61a7325046f25fca9aad54fc7418e4a50b2b6e2e86d6f78eef7cc1abda7efb
	CRC32	4e95fd64
	Example file location	---

Filename pci.sys

System Windows XP

File size 68224 bytes

Date 2008-04-14

Download

File details
	MD5	a219903ccf74233761d92bef471a07b1
	SHA1	a6fe7ca93616532f0b6305fc6878939830e45fe8
	SHA256	d4e6c360a1d2fca4d17c991b834d68bf20f5111dd06b1fab8b22984804cec269
	CRC32	ef787067
	Example file location	---