What is ohci1394?

Ohci1394.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 operating system, hardware etc. The free file information forum can help you determine if ohci1394.sys is a Windows system file or if it belongs to an application that you can trust.

Run a free scan to check for ohci1394 drivers in need of updating

Ohci1394.sys file information

The process known as 1394 OpenHCI Port Driver or AGERE OHCI Compliant IEEE (version 1394 Host Controller) or Texas Instruments OHCI Compliant IEEE (version 1394 Host Controller)

belongs to software AGERE OHCI Compliant IEEE (version 1394 Host Controller) or Texas Instruments OHCI Compliant IEEE (version 1394 Host Controller) or VIA OHCI Compliant IEEE (version 1394 Host Controller) or OHCI Compliant IEEE (version 1394 Host Controller) or 1394 OHCI Compliant Host Controller (Legacy) or NEC FireWarden OHCI Compliant IEEE (version 1394 Host Controller)

by Microsoft (

Description: The original ohci1394.sys is an important part of Windows and rarely causes problems. Ohci1394.sys is located in the C:\Windows\System32\drivers folder. Known file sizes on Windows 10/8/7/XP are 61,696 bytes (55% of all occurrences), 61,056 bytes, 55,680 bytes, 61,312 bytes or 61,952 bytes. 
The driver can be started or stopped from Services in the Control Panel or by other programs. The ohci1394.sys file is a Windows system file. The program is not visible. There is no detailed description of this service. The ohci1394.sys file is a trustworthy file from Microsoft. ohci1394.sys appears to be a compressed file. Therefore the technical security rating is 1% dangerous, however you should also read the user reviews.

Recommended: Identify ohci1394.sys related errors

Important: Some malware disguises itself as ohci1394.sys, particularly when not located in the C:\Windows\System32\drivers folder. Therefore, you should check the ohci1394.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.


User Comments

Installation of windows xp stopped with the message that ohci1394.sys was damaged.
  Giovanni Lugas  
The Primitive: Ohci1394.sys component provides support for IEEE 1394. This primitive supplies the standard port driver for port controllers that conform with the 1394 Open Host Controller Interface Specification. The standard port driver creates a hardware-independent interface for the IEEE 1394 bus and functions as a part of the 1394 base stack.
  Todd   (further information)

Summary: Average user rating of ohci1394.sys: based on 4 votes with 2 user comments. 3 users think ohci1394.sys is essential for Windows or an installed application. One user thinks it's probably harmless.

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Best practices for resolving ohci1394 issues

A clean and tidy computer is the key requirement for avoiding problems with ohci1394. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the 6resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the ohci1394.sys process on your computer, the following programs have proven to be helpful: ASecurity Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

ohci1394.sys [all]