qntmmc.sys - Repair Issues and Download

Sometimes Windows system displays error messages regarding corrupted or missing qntmmc.sys files. Situations like that can occur, for example, during a software installation process. Each software program requires certain resources, libraries, and source data to work properly. Corrupted or nonexistent qntmmc.sys file can therefore effect in failed execution of the started process.

qntmmc.sys file Quantum x500 and x700 Medium changer driver. The file was developed by for use with software. Here you will find detailed information about the file and instructions how to proceed in the event of qntmmc.sys related errors on your device. You can also download qntmmc.sys file compatible with Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista, Windows Vista devices which will (most probably) allow you to solve the problem.

Compatible with: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista, Windows Vista

User popularity

3.1 Scanning for malicious software
3.2 System and driver update
3.3 System File Checker tool
3.4 System recovery

4 Download qntmmc.sys

4.1 List of qntmmc.sys file versions

File info

General information
Filename	qntmmc.sys
File extension	SYS
Description	Quantum x500 and x700 Medium changer driver

Software
Program	Microsoft® Windows® Operating System
Author	Microsoft Corporation

Details
MIME type	application/octet-stream
File type	Driver
System	Windows NT 32-bit
Copyrights	© Microsoft Corporation. All rights reserved.
Character set	Unicode
Language cod	Neutral

Most common qntmmc.sys file related problems

There are various types of errors related to qntmmc.sys file. qntmmc.sys file may be located in wrong file directory on your device, may not be present in the system, or may be infected with malicious software and therefore not work correctly. Below is a list of most common error messages related to qntmmc.sys file. If you encounter one listed below (or similar), please consider the following suggestions.

qntmmc.sys is corrupted
qntmmc.sys cannot be located
Runtime Error - qntmmc.sys
qntmmc.sys file error
qntmmc.sys file cannot be loaded. Module was not found
cannot register qntmmc.sys file:
qntmmc.sys file could not be loaded
qntmmc.sys file doesn't exist

qntmmc.sys

Application could not be started because qntmmc.sys file is missing. Reinstall the application to solve the problem.

Problems related to qntmmc.sys can be addressed in various ways. Some methods are meant only for advanced users. If you don't have confidence in your skills, we suggest consulting a specialist. Fixing qntmmc.sys file errors should be approached with utmost caution for any mistakes can result in unstable or unproperly working system. If you have the necassary skills, please proceed.

How to fix qntmmc.sys errors in just few steps?

Remember, before taking any action related to system files perform a backup copy of your data!

qntmmc.sys file errors can be caused by various factors, so its is beneficial to try to fix them using various methods.

Step 1: Scan your computer for any malicious software

Windows files are commonly attacked by malicious software that prevents them from working properly. First step in addressing problems with qntmmc.sys file or any other Windows system files should be scanning the system for malicious software using an antivirus tool.

If by any chance you don't have any antivirus software installed on your system yet, you should do it immediately. Unprotected system is not only a source of file errors, but, more importantly, makes your system vulnerable to many dangers. If you don't know which antivirus tool to choose, consult this Wikipedia article – comparison of antivirus software.

Step 2: Update your system and drivers.

Installing relevant Microsoft Windows patches and updates may solve your problems related to qntmmc.sys file. Use dedicated Windows tool to perform the update.

Go to the Windows "Start" menu
Type "Windows Update" in the search field
Choose the appropriate software program (name may vary depending on your system version)
Check if your system is up to date. If any unapplied updates are listed, install them immediately.
After the update has been done,restart your computer in order to complete the process.

Beside updating the system, it is recommended that you install latest device drivers, as drivers can influence proper working of qntmmc.sys or other system files. In order to do so, go to your computer or device producer's website where you will find information regarding latest driver updates.

Step 3: Use System File Checker (SFC) tool

System File Checker is a Microsoft Windows tool. As the name suggests, the tool is used for identyfing and addressing system file related errors, including those related to qntmmc.sys file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the qntmmc.sys file with properly working version. To use the tool:

Go to the Windows "Start" menu
Type "cmd" in the search field
Locate "Command Prompt" result – don't run it yet:
Click the right mouse button and select "Run as Administrator" option
Type "sfc /scannow" in console prompt to start the program and follow the instructions

Step 4: Restoring Windows system

Another approach is to restore system to previous state, before the qntmmc.sys file error occured. In order to restore your system, follow the instructions below

Go to the Windows "Start" menu
Type "System Restore" in the search field
Start the system restore tool – it's name may differ depending on version of the system
The application will guide you through the process – read the messages carefully
After the process has finished, restart your computer.

If all the above-mentioned methods failed and the qntmmc.sys file problem has not been resolved, proceed to the next step. Remember that the following steps are intended only for advanced users.

Download and replace qntmmc.sys file

The last solution is to manually download and replace qntmmc.sys file in appropriate folder on the disk. Select file version compatible with your operating system and click the "Download" button. Next, go to your web browser's "Downloaded" folder and copy the downloaded qntmmc.sys file.

Go to the folder where the file should be located and paste the downloaded file. Below is the list of qntmmc.sys file example directory paths.

Windows 10: C:\Windows\System32\DriverStore\FileRepository\mchgr.inf_x86_ba100587bcd18b1c\
Windows 8.1: C:\Windows\System32\DriverStore\FileRepository\mchgr.inf_x86_86a2bc5c83e005e4\
Windows 8: 1: C:\Windows\System32\DriverStore\FileRepository\mchgr.inf_x86_86a2bc5c83e005e4\
Windows 7: ---
Windows Vista: ---
Windows Vista: ---

If the steps did not solve your qntmmc.sys file problem, you should consult a professional. A probability exists that the error(s) might be device-related and therefore should be resolved at the hardware level. A fresh operating system installation might be necessary – a faulty system installation process can result in data loss.

File versions list

Filename qntmmc.sys

System Windows 10

File size 9216 bytes

Date 2017-03-18

Download

File details
	MD5	69bf0aa47ec954c5a60841b1ed5f823c
	SHA1	cf5415082f9639cc709f356e4ce87d20c6057032
	SHA256	a125a4f7db4cdbc38944a7950b5b920db4e75fd2e9982a9ff74a39935a2aaa84
	CRC32	145d4cd5
	Example file location	C:\Windows\System32\DriverStore\FileRepository\mchgr.inf_x86_ba100587bcd18b1c\

Filename qntmmc.sys

System Windows 8.1

File size 9216 bytes

Date 2013-08-22

Download

File details
	MD5	ff6c2998317ea73620cad94c0fd3b373
	SHA1	04a06a4f4ee09e91b2cb977c967aa07d4932273c
	SHA256	199e4ff8f560705daa53bdd4c353cebe6336d6c9176ebe9d8aa3d852e7fdd910
	CRC32	4eba8f17
	Example file location	C:\Windows\System32\DriverStore\FileRepository\mchgr.inf_x86_86a2bc5c83e005e4\

Filename qntmmc.sys

System Windows 8

File size 9216 bytes

Date 2012-07-26

Download

File details
	MD5	38246d73feb468212dcafa393a3b21bd
	SHA1	5d89fe51a5f5674846cc752adf1a8751a658ae50
	SHA256	b9f19975952910ccb2c8974325577f79e0ddcf34eaf091f4f95e3ce73962917e
	CRC32	b79f3a92
	Example file location	1: C:\Windows\System32\DriverStore\FileRepository\mchgr.inf_x86_86a2bc5c83e005e4\

Filename qntmmc.sys

System Windows 7

File size 11264 bytes

Date 2010-11-21

Download

File details
	MD5	e7a8c37665be0f0af73d79f843baaeaa
	SHA1	ebc1371e099104f76d889c88aa7ec9e4cc6ff212
	SHA256	5ac3bfdc825fbc5b16ae43a80ba003728540cdbaadcd1cd3bb32f05fc657c60a
	CRC32	18a76418
	Example file location	---

Filename qntmmc.sys

System Windows Vista

File size 11264 bytes

Date 2008-01-21

Download

File details
	MD5	0bf3d21c6f952183a17992cad080531c
	SHA1	0face367625532d7c44d3bd3d788c27cc13c0f87
	SHA256	78d8de4db964934de49f5c19821e446f78b91b6d20ec71c9c31007e0a6910ce1
	CRC32	abf56094
	Example file location	---

Filename qntmmc.sys

System Windows Vista

File size 11264 bytes

Date -0001-11-30

Download

File details
	MD5	7a01ac4d2b144e2b436406550c4644db
	SHA1	3ca0e8482d71aabcaa4d4a9b635706acb1ab48e3
	SHA256	56429a047ef64bc43f20cda57c0d77e37a9ff7b3dfa0176b27616b257ee76a75
	CRC32	f32cab3a
	Example file location	---