mdminst.dll - How to Fix? Download Now

Sometimes Windows system displays error messages regarding corrupted or missing mdminst.dll 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 mdminst.dll file can therefore effect in failed execution of the started process.

mdminst.dll file Modem Class Installer. 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 mdminst.dll related errors on your device. You can also download mdminst.dll file compatible with Windows 10, Windows 8.1, Windows 8, Windows 7, Windows 7, Windows Vista, Windows Vista, Windows XP devices which will (most probably) allow you to solve the problem.

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

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 mdminst.dll

4.1 List of mdminst.dll file versions

File info

General information
Filename	mdminst.dll
File extension	DLL
Description	Modem Class Installer

Software
Program	Microsoft® Windows® Operating System
Author	Microsoft Corporation

Details
MIME type	application/octet-stream
File type	Dynamic link library
System	Windows NT 32-bit
Copyrights	© Microsoft Corporation. All rights reserved.
Character set	Unicode
Language cod	English (U.S.)

Most common mdminst.dll file related problems

There are various types of errors related to mdminst.dll file. mdminst.dll 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 mdminst.dll file. If you encounter one listed below (or similar), please consider the following suggestions.

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

mdminst.dll

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

Problems related to mdminst.dll 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 mdminst.dll 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 mdminst.dll errors in just few steps?

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

mdminst.dll 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 mdminst.dll 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 mdminst.dll 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 mdminst.dll 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 mdminst.dll file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the mdminst.dll 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 mdminst.dll 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 mdminst.dll 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 mdminst.dll file

The last solution is to manually download and replace mdminst.dll 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 mdminst.dll file.

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

Windows 10: C:\Windows\System32\
Windows 8.1: C:\Windows\System32\
Windows 8: 1: C:\Windows\System32\
Windows 7: C:\Windows\SysWOW64\
Windows 7: C:\Windows\SysWOW64\
Windows Vista: ---
Windows Vista: ---
Windows XP: ---

If the steps did not solve your mdminst.dll 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 mdminst.dll

System Windows 10

File size 161792 bytes

Date 2017-03-18

Download

File details
	MD5	b2ed7b324358aad452328ea72c172035
	SHA1	f6b0bc86606488693b948253c74adf96fc5432d9
	SHA256	264b8e2f0137dad2c79b8ec48bf49422a32831a67757647cc6dc5378bbd1ac3f
	CRC32	72b5f485
	Example file location	C:\Windows\System32\

Filename mdminst.dll

System Windows 8.1

File size 201728 bytes

Date 2014-11-21

Download

File details
	MD5	05f68ead839bca6245a73837a94ca328
	SHA1	4f0508e8b8565ab7a71e1f608955906a5f6df51e
	SHA256	028a83c25c33c01ee36800cff2b35e5123793f64b1b13e49fb50f2072f96abc4
	CRC32	d23fd3dd
	Example file location	C:\Windows\System32\

Filename mdminst.dll

System Windows 8

File size 205312 bytes

Date 2012-07-26

Download

File details
	MD5	29e4d4b702c113ae45ccc7934f7426a5
	SHA1	8cc0ccaf6556317e7b12a0d2b13e3f013bcf243c
	SHA256	480d205242dfe4dd7ba2ba057a15679e7da2138935497fe3ebd1c7174f40f937
	CRC32	c680a775
	Example file location	1: C:\Windows\System32\

Filename mdminst.dll

System Windows 7

File size 205824 bytes

Date -0001-11-30

Download

File details
	MD5	a205b7a5d8e4ae6e8de7b313c7fc3fa4
	SHA1	765a44392727216fb30111f71cfba44f783410b8
	SHA256	09bbe0aa054595b909a1f8d4ec34404f3064900b747a3b6c20d4fe25e9b0a4d0
	CRC32	d12713f8
	Example file location	C:\Windows\SysWOW64\

Filename mdminst.dll

System Windows 7

File size 216576 bytes

Date 2009-07-14

Download

File details
	MD5	a46aa1478aa10b55eed633f553a60985
	SHA1	cac9a609aa417ec594d25d8f7987f2c769e52eb2
	SHA256	5dd42c0dd1abfaa55b07c08a2f0412bda89f6fe246e6bd71c7a752a88bf1f534
	CRC32	f42adba2
	Example file location	C:\Windows\SysWOW64\

Filename mdminst.dll

System Windows Vista

File size 215552 bytes

Date 2009-04-11

Download

File details
	MD5	0257570c58b4f482ac65b87b1d9e7fba
	SHA1	c6724800931937e7f5469f7bff2d29279d58c2f2
	SHA256	069a1842baa2f3ad22ee66380fc45718b94c7755dc05a7cfdeb1e96e9b001140
	CRC32	389614fa
	Example file location	---

Filename mdminst.dll

System Windows Vista

File size 205312 bytes

Date -0001-11-30

Download

File details
	MD5	23615808ad84a96fe5d2301fdbe4cbfc
	SHA1	dd2adbf3e978c0868feb58a10215c4f4d175dcc6
	SHA256	51fb570f1f48add5b4defc4643e3553a193d937c7910c9e112057d62ca8e91fd
	CRC32	450466bb
	Example file location	---

Filename mdminst.dll

System Windows XP

File size 118272 bytes

Date 2008-04-14

Download

File details
	MD5	897eb07b0cabda44d92cdde23d9a84c1
	SHA1	5efc1e3e10eb3827075c42ade92d4c1cf64de27f
	SHA256	4c5e75077309b93b3c022615b4fdb395b0beb58b19286e9cf90654b010ca6d33
	CRC32	a89d8c5c
	Example file location	---