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)) by Protection Technology (www.star-force.com) or Protection Technology (StarForce) (www.star-force.com).
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 10/11/7 are 50,688 bytes (50% of all occurrences), 48,640 bytes and 6 more variants. 
The driver can be started or stopped from Services in the Control Panel or by other programs.
The program is not visible. The service has no detailed description. Sfdrv01.sys is not a Windows system file.
sfdrv01.sys appears to be a compressed file.
Therefore the technical security rating is 37% 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.
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 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 executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.
To get your computer running as fast as it did on day one, you can 8reset your PC. Your personal files will remain intact, but any programs you installed will need to be reinstalled.
To help you analyze the sfdrv01.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. A good Bantivirus software detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.
Other processes
pupdbrowser.exe winseven.exe winvxm.exe sfdrv01.sys franz.exe gamebar_connect.exe magicjack.exe antie.dll polipo.exe getwordnt.dll ssmaker.exe [all]
Score
User Comments
io
Maniac (further information)
Rootkit Hater
Ir. Kees Laterveer
Concerned Gamer (further information)
Randy Mitchell (further information)
Yep_I_rectum (further information)
CommAgainstGameStupidity
Dudeman
Dude
Wreedman
SCB
Dave
Pronoob
Summary: Average user rating of sfdrv01.sys: based on 20 votes with 18 user comments. One user thinks it's probably harmless. 7 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.