Tmtdi.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 tmtdi.sys is a Windows system file or if it belongs to an application that you can trust.
The process known as Trend Micro TDI Driver (version (i386-fre)) or Trend Micro TDI Driver (amd64-fre) belongs to software Trend Micro Network Security Components or Trend Micro Internet Security by Trend Micro (www.trendmicro.com) or trend_company_name.
Description: Tmtdi.sys is not essential for the Windows OS and causes relatively few problems. The file tmtdi.sys is located in the C:\Windows\System32\drivers folder.
Known file sizes on Windows 10/8/7/XP are 90,256 bytes (25% of all occurrences), 73,288 bytes, 65,936 bytes or 75,088 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 service has no detailed description. The tmtdi.sys file is not a Windows system file. Tmtdi.sys is a Microsoft signed file. The tmtdi.sys file is a Verisign signed file. It is certified by a trustworthy company. tmtdi.sys appears to be a compressed file. Therefore the technical security rating is 0% dangerous.
Recommended: Identify tmtdi.sys related errors
Important: Some malware disguises itself as tmtdi.sys, particularly when not located in the C:\Windows\System32\drivers folder. Therefore, you should check the tmtdi.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.
A clean and tidy computer is the key requirement for avoiding problems with tmtdi. 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.
To help you analyze the tmtdi.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.