What is adfs?

The genuine adfs.sys file is a software component of Adobe Drive by Adobe Systems.
This is a driver file type belonging to the program Adobe Drive, in particular version CS4. The program is developed by Adobe Systems Incorporated. Adobe Drive is software that allows a user to access remote assets through a digital asset management or DAM system with programs bundled in the Adobe Creative Suite. The Creative Suite is related to arts and music applications.

ADFS stands for Adobe Drive File System Driver

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

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

Adfs.sys file information

The process known as Adobe Drive File System Driver belongs to software Adobe Drive (version CS4) by Adobe Systems (

Description: Adfs.sys is not essential for the Windows OS and causes relatively few problems. The file adfs.sys is located in the C:\Windows\System32\drivers folder. Known file sizes on Windows 10/8/7/XP are 74,720 bytes (66% of all occurrences) or 73,312 bytes. 
The driver can be started or stopped from Services in the Control Panel or by other programs. The program has no visible window. The file is a Verisign signed file. The file is certified by a trustworthy company. There is no detailed description of this service. The file is not a Windows core file. The application can be removed using the Control Panel's Add\Remove programs applet. adfs.sys appears to be a compressed file. Therefore the technical security rating is 8% dangerous.

Uninstalling this variant: If you run into problems with adfs.sys, you can also use the software publisher's support site or uninstall the associated program (Start > Control Panel > Uninstall a Program > Adobe Drive CS4).

Recommended: Identify adfs.sys related errors

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


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Best practices for resolving adfs issues

A clean and tidy computer is the key requirement for avoiding problems with adfs. 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 adfs.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

adfs.sys [all]