What is sfdrv01?

Sfdrv01.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 sfdrv01.sys is a Windows system file or if it belongs to an application that you can trust.

Run a free scan to check for sfdrv01 drivers in need of updating

Sfdrv01.sys file information

The process known as StarForce Protection Environment Driver or FrontLine Environment Driver belongs to software StarForce Protection Environment Driver (version (version 1.x)) or StarForce Protection System by Protection Technology ( or Protection Technology (StarForce) (

Description: Sfdrv01.sys is not essential for Windows and will often cause problems. Sfdrv01.sys is located in the C:\Windows\System32\drivers folder. Known file sizes on Windows 10/8/7/XP are 50,688 bytes (56% of all occurrences), 51,200 bytes and 7 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. Sfdrv01.sys is not a Windows system file. sfdrv01.sys appears to be a compressed file. Therefore the technical security rating is 39% dangerous, however you should also read the user reviews.

Recommended: Identify sfdrv01.sys related errors

Important: Some malware camouflages itself as sfdrv01.sys. Therefore, you should check the sfdrv01.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

From where can i take it
StarForce Protection Environment Driver (version 1.x) - Software Protection
  Maniac   (further information)
Copy Protection rootkit installed via Sony DVD "The Cave"
  Rootkit Hater  
Copy protection system for software distributed on CDs & DVDs
SFDRV01.SYS intercepts optical drive calls and interferes terminally with NERO and causes immediate system crash when it suspects something illegal going on (like playing DVD for instance). SFHLP02.SYS and SFSYNC02.SYS should also be deleted. Then clean up the registry of all sfdrv, sfhlp and sfsync instances. It is needed for some games and such but it will install itself in no time when needed.
  Ir. Kees Laterveer  
Copy Protection, after deinst Software, Process still in regestry
new files on my pc. Perhaps installed by a protected DVD (Warner Bross)
This is part of "security" software required to be installed with some games...The company that makes this "security" program is StarForce...the program is detrimental to several normal fuctions of a computer. I highly advise its removal and to avoid games that use this specific service for copywrite protection. Many have dubbed StarForce as Malware and I would definately agree
  Concerned Gamer   (further information)
Part of group of downloaded and installed game drivers (hidden)
  Randy Mitchell   (further information)
got BSOD from sfsync.sys 10-22-09 renamed it to .old with recovery disk comand prompt got BSOD 11-01-09 from sfdrv01.sys followed maniac's info link to SF and found their removal tool . will try it shortly wish me luck lol!!!
  Yep_I_rectum   (further information)
This file was identified as being the cause of an immediate BSOD when the Rootkit scan of AVG9.0 was run.
I have just had to reinstall Windows 7 because it wouldn't boot up anymore. The OS claimed that a file called sfdrv01.sys was responsible...
This file screwed up my Win7 and it didn't boot anymore. I managed to fix this by rebuilding the Boot Configuration Data.
I had this driver problem which has no digital signature so my Windows stopped booting, Solved it by deleting it from my harddisk.. It is a StarForce Protection Environment Driver which comes with some games (in my case Trackmania).
BSOD on scan with Vipre
Installed with older (pre 2005) Nadeo (Trackmania) games
drivers for steelseries engine (headphones)

Rating chart

Summary: Average user rating of sfdrv01.sys: based on 19 votes with 17 user comments. One user thinks it's probably harmless. 6 users think it's neither essential nor dangerous. 6 users suspect danger. 6 users think sfdrv01.sys is dangerous and recommend removing it. One user is not sure about it.

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Best practices for resolving sfdrv01 issues

A clean and tidy computer is the key requirement for avoiding problems with sfdrv01. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic 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 resmon 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 DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the sfdrv01.sys process on your computer, the following programs have proven to be helpful: Security 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. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

sfdrv01.sys [all]