What is ntvdm.exe?
Ntvdm.exe is a executable file (a program) within Windows. The filename extension .exe denotes an executable file. You should only run executable files from publishers you trust, because executable files can potentially change your computer settings or harm your computer. The free file information forum can help you determine if ntvdm.exe is a virus, trojan, spyware, or adware that you can remove, or a file belonging to a Windows system or to an application you can trust.
Ntvdm.exe file information
Description: Ntvdm.exe is an important part of Windows, but often causes problems. The file ntvdm.exe is located in the folder C:\Windows\System32.
Known file sizes on Windows 7/XP are 526,848 bytes (63% of all occurrences), 520,704 bytes or 520,192 bytes.
It is a Windows core system file. The file is a Microsoft signed file. The program has no visible window. Therefore the technical security rating is 8% dangerous, however also read the users reviews.
Recommended: Identify ntvdm.exe related errors
If ntvdm.exe is located in a subfolder of "C:\Program Files\Common Files", the security rating is 64% dangerous. The file size is 73,216 bytes. There is no file information. The program is not visible. The process starts when Windows starts (see Registry key: HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run, HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Run). It is not a Windows system file. Ntvdm.exe is able to monitor applications.
External information from Paul Collins:
- "NTVDM" can run at start up. Windows NT Virtual DOS Machine (NTVDM) for running 16-bit tasks on the 32-bit OS's (Windows NT, 2K and XP). Required if hardware on a machine with these OS's needs 16-bit DOS drivers. You can find a bit more about NTVDM here
Important: Some malware disguises itself as ntvdm.exe, particularly when not located in the C:\Windows\System32 folder. Therefore, you should check the ntvdm.exe 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.
Dale Randle (further information)
David Brown (further information)
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Security Task Manager shows all running Windows tasks including embedded hidden functions (e.g. keyboard or browser monitoring, autostart entry). A unique security risk rating indicates the likelihood of the process being potential spyware, malware, keylogger or a Trojan.
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