What is FsUsbExDisk?

FsUsbExDisk.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 FsUsbExDisk.SYS is a Windows system file or if it belongs to an application that you can trust.

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

FsUsbExDisk.SYS file information

The process known as Samsung New PC Studio or Samsung Kies belongs to software FsUsbExDisk or Samsung New PC Studio by Samsung Electronics Co. (

Description: FsUsbExDisk.SYS is not essential for the Windows OS and causes relatively few problems. FsUsbExDisk.SYS is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 37,344 bytes (48% of all occurrences), 36,608 bytes or 36,640 bytes. 
The driver can be started or stopped from Services in the Control Panel or by other programs. There is no description of the program. The program is not visible. The service has no detailed description. The FsUsbExDisk.SYS file is not a Windows system file. FsUsbExDisk.SYS appears to be a compressed file. Therefore the technical security rating is 49% dangerous, however you should also read the user reviews.

Uninstalling this variant: If problems with Samsung Kies or Samsung New PC Studio come up, you could do the following:
  • search for help on the company's website
  • uninstall the software using the Uninstall a Program function of Windows Control Panel (Windows: Start, Settings, Control Panel, Uninstall a Program)

Recommended: Identify FsUsbExDisk.SYS related errors

If FsUsbExDisk.SYS is located in a subfolder of C:\Windows, the security rating is 26% dangerous. The file size is 37,344 bytes (87% of all occurrences) or 36,608 bytes. There is no file information. The application is not active. The program has no visible window. There is no detailed description of this service. The FsUsbExDisk.SYS file is not a Windows core file. FsUsbExDisk.SYS appears to be a compressed file.

Important: Some malware camouflages itself as FsUsbExDisk.SYS. Therefore, you should check the FsUsbExDisk.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

Part of Samsung PC Studio software
Not digitally signed on my system
It causes crashes on my PC (winXP_SP3) during startup, roughly where the last USB device enumerates

Summary: Average user rating of FsUsbExDisk.SYS: based on 3 votes with 3 user comments. 2 users think FsUsbExDisk.SYS is essential for Windows or an installed application. One user suspects danger.

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Best practices for resolving FsUsbExDisk issues

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

FsUsbExDisk.SYS [all]