What is parvdm?

The genuine parvdm.sys file is a software component of Microsoft Windows Operating System by Microsoft.
Introduced initially with Windows XP, the VDM Parallel Driver allows a virtual instance of MS-DOS to be run through Windows. Previously, the Windows operations system existed on top of MS-DOS, but starting with XP, Windows existed independently from any version of DOS. Parvdm.sys is run when a DOS shell or command prompt is opened in Windows. Founded in 1975 in New Mexico, Microsoft is now one of the largest software corporations in the world. Currently headquartered in Washington, the flagship Windows operation system is the most utilized OS in the world.

ParVDM stands for Parallel Driver for Virtual Dos Machine

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

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

Parvdm.sys file information

The process known as VDM Parallel Driver belongs to software Microsoft Windows Operating System by Microsoft (

Description: Parvdm.sys is not essential for the Windows OS and causes relatively few problems. Parvdm.sys is located in the C:\Windows\System32\drivers folder. Known file sizes on Windows 10/8/7/XP are 8,704 bytes (90% of all occurrences) or 6,784 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 a Microsoft signed file. The parvdm.sys file is not a Windows system file. The program is not active. Therefore the technical security rating is 1% dangerous, but you should also take into account the user reviews.

Recommended: Identify parvdm.sys related errors

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

see it in manager,don`t work.
Systemtyp Fehler - Kategorie keine - Benutzer Nicht zutreffend - Computer mein PC
parvdm.sys is part of Microsoft Windows VDM parallel driver and should be located in C:\WINDOWS\system32\drivers\
The file is a Microsoft signed file. parvdm.sys seems to be a compressed file. Therefore the technical security rating is 1% dangerous.
  mikkokilla   (further information)

Summary: Average user rating of parvdm.sys: based on 5 votes with 4 user comments. 3 users think parvdm.sys is essential for Windows or an installed application. One user thinks it's probably harmless. One user suspects danger.

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Best practices for resolving parvdm issues

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

parvdm.sys [all]