DLL Tool

pci.sys driver missing or corrupt BSOD

May 18, 2014

DLL ToolDLL Tool downloads and replaces missing or corrupt pci.sys driver to repair pci.sys hooked import ntoskrnl.exe at address f748e0bf base blue screen for PCs running Microsoft Windows 8.1/8/7/XP/Vista OS, including 32 and 64 bits.

About pci.sys

PCI.sys is a Microsoft Windows PCI driver that should be located in the C:\Windows\System32\drivers directory. This PCI Bus Driver is a file developed by Microsoft Corporation belonging to Microsoft Windows Operating System.

Short for Peripheral Component Interconnect, PCI was introduced by Intel in 1992, revised in 1993 to version 2.0, and later revised in 1995 to PCI 2.1 and is as an expansion to the ISA bus. The PCI bus is a 32-bit (133MBps) computer bus that is also available as a 64-bit bus and was the most commonly found and used computer bus in computers during the late 1990's and early 2000's. Unlike, ISA and earlier expansion cards, PCI follow the PnP specification and therefore does not require any type of jumpers or dip switches. Below is an example of what the PCI slots looks like on a motherboard. In the picture, there are three PCI slots, PCI4, PCI5, and PCI6.

If you are looking for PCI drivers, you most likely need to get the drivers for the installed PCI device. For example, if you need a PCI Ethernet adapter driver you need the drivers for the PCI network card. See our drivers section for all computer drivers.

The PCI bus is a common technology used on many embedded devices. All modern desktop computers have PCI expansion slots for peripheral devices, which replace the ISA slots used in the past. In embedded systems, PCI devices can also be embedded into system motherboards. PCI bus support makes it possible to include a wide variety of inexpensive PCI devices on embedded hardware platforms.

Like a PC Card, PCI has Plug and Play and power management features. The same device driver can be used in ISA, PCI, and direct system bus designs. PCI devices are computer hardware components that install directly into the PCI slots on the motherboard. Common PCI devices include sound cards, video cards, modems and USB ports.

For a PCI device to work, the appropriate driver must be installed. PCI device drivers are small pieces of software that can be installed in one of three ways: from a supplied disc, from a file downloaded from the device manufacturer's Website or automatically through Windows.

Common pci.sys errors

  1. Pci driver is missing after installing windows7.
  2. Missing system32\DRIVERS\pci.sys, lost original repair cd, computer won't boot properly.
  3. PCI simple Communications Controller isn't working.
  4. ATI PCI Video Card - Error Code 43.
  5. Error Code 10 on PNY 8400 GS PCI , Windows 7 x86 ultimate.
  6. Problem with pci ide controller on DZ68bc intel board.
  7. Unable to install windows 8 with a PCI express card.
  8. Windows 7 unable to recognize "ITE 887x PCI Multi-I/O Controller".
  9. No driver found for PCI card SATA IDE interface via vt6421 chipset Advance PCI-ST101 manufacturer.
  10. ATI I/O Communications Processor PCI Bus Controller ERROR
  11. Unable to find the driver for PCI Simple Communication Controller.
  12. Computer freezes at startup and shows pci express error.
  13. BAD_POOL_HEADER blue screen Pci.sys.

Why do you have pci.sys errors?

A problematic driver - If pci.sys has gone faulty suddenly (because of poor quality) or is missing because improper uninstall and reinstall of a device or application.

Hardware Issues - If a hardware unit is malfunctioning (due to device driver or some other problem) or you removed/ejected a device while the computer was still operational, the pci.sys BSOD error will occur.

Windows Registry Errors - If some registry entries have gone corrupt or damaged, or if you uninstalled a program but not its registry entries from the registry editor, it will result into pci.sys error. Windows Registry is a database used to store configuration information related to Windows OS including software and hardware.

Incompatible DLL Files - Dynamic Link Library (DLL) files are the necessary files required to execute or process certain programs in Windows. If pci.sys does not have compatible (or may be damaged) DLL files, it will result into error. DLLs are installed into a computer again and again, whenever pci.sys requires them.

Virus Infection - It is the major reason of pci.sys error if your computer has none of the problems discussed here. A virus or other malicious program forces the Windows to keep running so that it can install itself fully and corrupt the machine. However, Windows in its self defense shuts down forcibly in order to prevent any further damage to the OS.

How to fix pci.sys errors

Use DLL TOOL to keep drivers compatible with each other, update them regularly, and remove any faulty/damaged driver. DLL TOOL has a reliable and complete collection of system files for free download.

Always ensure that the hardware is compatible with the OS and software. Repair the malfunctioning hardware, upgrade it, and if both the things are not possible, then remove it and setup a new one.

It may not be possible for you to search for the defective registry entries in your computer. Run the registry cleaner DLL TOOL to clean the corrupted/damaged registry entries. This tool will do a custom or full scan, whichever you may choose to run, and show a list of registry entries that need to be fixed. You can click to deselect entries you might not want to delete and press yes/ok whatever you find there and the tool will automatically fix the errors.

Before you fix pci.sys file errors, run DLL TOOL to ensure that you have installed latest drivers for software and hardware, there is no registry error, and there is no virus in your computer. Thereafter, remove corrupted DLL files and download latest compatible files by the free download of DLL TOOL to avoid interaction with virus/spyware or any hidden malicious programs.

Run a full antivirus scan on your PC, this may take some time so be patient. When the scan is completed, check the list if there is any virus, allow DLL TOOL to remove it. Restart the PC to let the changes take place.

With DLL TOOL, you are freed of manually troubleshooting a pci.sys issue and running a series of repair tools.