What is dtscsi?

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

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

Dtscsi.sys file information

The process known as dtscsi or SCSI miniport belongs to software dtscsi or DAEMON Tools by DT Soft (

Description: Dtscsi.sys is not essential for the Windows OS and causes relatively few problems. Dtscsi.sys is located in the C:\Windows\System32\drivers folder. The file size on Windows 10/8/7/XP is 223,128 bytes. 
The driver can be started or stopped from Services in the Control Panel or by other programs. The program has no visible window. There is no detailed description of this service. The file is not a Windows core file. There is no file information. Therefore the technical security rating is 52% dangerous, however you should also read the user reviews.

Recommended: Identify dtscsi.sys related errors

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

Daemon Tools V4.00 - Scsi driver (dtscsi.sys)
  Rod Dines   (further information)
I think this is dangerous .He send e-mails via smtp.
It is a process for Daemon Tools.
  Justin Kerfont  
Its an driver for daemon tools...nothing happens
  Holger G. Schmidt   (further information)
The SCSI virtual drive driver for DAEMON Tools.
  Leon   (further information)
daemon tools scsi driver
Involved in the startup of Daemon Tools
Daemon tools process - may couse crash if you upgrade your Windows XP Home/Professional using a newer system copy
  Sidian   (further information)
Daemon Tools v4.00
It's from Dameon tools, but it can cause problems when reinstalling windows
Its a Driver for Daemon Tools. But it gets a rating of 57 on Security Task Manager.
false positive, part of daemon tools
uninstall daemon tools if you are installing a genuine advantge upgrade for a acked copy of windows
  cracker with no name  
Daemon Tools 4 SCSI driver.
i don't have daemon tools but i have the process, nothing bad in it

Rating chart

Summary: Average user rating of dtscsi.sys: based on 22 votes with 15 user comments. 18 users think dtscsi.sys is essential for Windows or an installed application. 3 users think it's probably harmless. One user thinks it's neither essential nor dangerous.

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Best practices for resolving dtscsi issues

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

dtscsi.sys [all]