Microsoft Windows SYS ltmdmnt.sys

Fix Ltmdmnt.sys Errors and Download Now

Last Updated: 11/26/2023
[Time Required for Reading: 3.5 minutes]

SYS files such as ltmdmnt.sys are categorized as Win32 EXE (VxD) files. As a Agere Windows Modem file, it was created for use in Agere V.92 Data+Fax Modem Version 8.36 by Microsoft.

ltmdmnt.sys was initially released with Windows 8 on 08/01/2012 for the Windows 8 Operating System. The latest file version for Windows 10 is v8.36 released on 07/29/2015. ltmdmnt.sys is included in Windows 10, Windows 8.1, and Windows 8 versions.

In this article, you will find detailed ltmdmnt.sys information, a SYS file troubleshooting guide, and a list of versions that are available for free download.

File Analysis Provided by Jason Geater (Author)

File Overview

General Information ^✻
File Name:	ltmdmnt.sys
File Extension:	SYS file extension
Description:	Agere Windows Modem
Object File Type:	VxD
File Operating System:	Windows 16-bit
MIME Type:	application/octet-stream
User Popularity Rating:

Developer and Software Information
Software Developer:	Agere Systems
Software Program:	Agere V.92 Data+Fax Modem Version 8.36
Legal Copyright:	Copyright © Agere Systems 2003

File Details
Character Set:	Unicode
Language Code:	Neutral
File Flags:	(none)
File Flags Mask:	0x003f
Entry Point:	0x943fc
Code Size:	296960

View Other ltmdmnt.sys Information

File Info	Description
File Size:	492 kB
File Modification Date/Time:	2012:07:25 22:49:57+00:00
File Inode Change Date/Time:	2017:11:05 07:01:44+00:00
File Type:	Win32 EXE
MIME Type:	application/octet-stream
Machine Type:	Intel 386 or later, and compatibles
Time Stamp:	2006:03:08 14:23:07+00:00
PE Type:	PE32
Linker Version:	8.0
Code Size:	296960
Initialized Data Size:	205312
Uninitialized Data Size:	0
Entry Point:	0x943fc
OS Version:	6.0
Image Version:	6.0
Subsystem Version:	6.0
Subsystem:	Native
File Version Number:	8.36.0.0
Product Version Number:	6.0.5303.0
File Flags Mask:	0x003f
File Flags:	(none)
File OS:	Windows 16-bit
Object File Type:	VxD
File Subtype:	7
Language Code:	Neutral
Character Set:	Unicode
Company Name:	Agere Systems
File Description:	Agere Windows Modem
File Version:	8.36
Internal Name:	ltmdmnt.sys
Legal Copyright:	Copyright © Agere Systems 2003
Original Filename:	ltmdmnt.sys
Product Name:	Agere V.92 Data+Fax Modem Version 8.36
Product Version:	8.36

^✻ Portions of file data provided by Exiftool (Phil Harvey) distributed under the Perl Artistic License.

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What are ltmdmnt.sys Error Messages?

ltmdmnt.sys Blue Screen of Death (BSOD) Errors

There are a number of reasons why you could be encountering issues with ltmdmnt.sys. Most of the issues concerning sys files involve Blue Screen of Death (BSOD) errors. These types of ltmdmnt.sys errors can be cause by hardware problems, outdated firmware, corrupt drivers, or other software-related (eg. Windows update) issues. Some of these errors include:

ltmdmnt.sys could not be found.
ltmdmnt.sys failed to load.
The file ltmdmnt.sys is missing or corrupt.
Windows failed to start - ltmdmnt.sys.

A problem has been detected and Windows has been shut down to prevent damage to your computer. The problem seems to be caused by the following file: ltmdmnt.sys.

:( Your PC ran into a problem that it couldn't handle, and now needs to restart. You can search for the error online: [BSOD] (ltmdmnt.sys).

STOP 0x00000050: PAGE FAULT IN A NONPAGED AREA (ltmdmnt.sys) STOP 0x0000003B: SYSTEM SERVICE EXCEPTION (ltmdmnt.sys) STOP 0×0000007A: KERNEL DATA INPAGE (ltmdmnt.sys) STOP 0x0000007E: SYSTEM THREAD EXCEPTION NOT HANDLED (ltmdmnt.sys) STOP 0x0000000A: IRQL NOT LESS EQUAL (ltmdmnt.sys) STOP 0x0000001E: KMODE EXCEPTION NOT HANDLED (ltmdmnt.sys)

It's Critical to Resolve Blue Screen of Death Errors

In the majority of cases, you will encounter ltmdmnt.sys BSOD errors after you've installed new hardware, software (Windows), or performed a failed Windows Update. In other cases, software corruption caused by a malware infection can lead to ltmdmnt.sys Blue Screen of Death errors. Therefore, it's critical to make sure your anti-virus is kept up-to-date and scanning regularly.

GEEK TIP : As a rule of thumb, it's always a good idea to create a Windows "Snapshot" backup / System Restore Point before making any hardware or software changes to your computer. That way, it's very easy to restore your system in the unfortunate event you encounter a ltmdmnt.sys Blue Screen of Death error after recent changes.

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How to Fix ltmdmnt.sys Errors in 3 Steps (Time to complete: ~5-15 minutes)

If you're encountering one of the error messages above, follow these troubleshooting steps to resolve your ltmdmnt.sys issue. These troubleshooting steps are listed in the recommended order of execution.

Step 1: Restore your PC back to the latest restore point, "snapshot", or backup image before error occurred.

To begin System Restore (Windows XP, Vista, 7, 8, and 10):

Hit the Windows Start button
When you see the search box, type "System Restore" and press "ENTER".
In the search results, find and click System Restore.
Please enter the administrator password (if applicable / prompted).
Follow the steps in the System Restore Wizard to choose a relevant restore point.
Restore your computer to that backup image.

If the Step 1 fails to resolve the ltmdmnt.sys error, please proceed to the Step 2 below.

Step 2: Run SFC (System File Checker) to restore the corrupt or missing ltmdmnt.sys file.

System File Checker is a utility included with every Windows version that allows you scan and restore corrupted system files. Use the SFC tool to fix missing or corrupt ltmdmnt.sys files (Windows XP, Vista, 7, 8, and 10):

Hit the Windows Start button
In the search box, type "cmd" but DO NOT PRESS "ENTER".
Press and hold "CTRL-Shift" on your keyboard while pressing "ENTER".
You'll be prompted with a permission dialog box.
In the box, click "YES".
You should have a black screen with a blinking cursor.
In that black screen, type "sfc /scannow" and hit "ENTER".
SFC will begin scanning for ltmdmnt.sys issues and any other system file problems.
Follow any on-screen commands to complete the process.

Please be aware that this scan might take a while, so please be patient while it is working.

If this Step 2 fails as well, please proceed to the Step 3 below.

sfc /scannow

Step 3: Perform a Windows Update.

When the first two steps haven't solved your issue, it might be a good idea to run Windows Update. Many ltmdmnt.sys error messages that are encountered can be contributed to an outdated Windows Operating System. To run Windows Update, please follow these easy steps:

Hit the Windows Start button
In the search box, type "Update" and press "ENTER".
In the Windows Update dialog box, click "Check for Updates" (or similar button depending on your Windows version)
If updates are available for download, click "Install Updates".
After the update is completed, restart your PC.

If Windows Update failed to resolve the ltmdmnt.sys error message, please proceed to next step. Please note that this final step is recommended for advanced PC users only.

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If Those Steps Fail: Download and Replace Your ltmdmnt.sys File (Caution: Advanced)

If none of the previous three troubleshooting steps have resolved your issue, you can try a more aggressive approach (Note: Not recommended for amateur PC users) by downloading and replacing your appropriate ltmdmnt.sys file version. We maintain a comprehensive database of 100% malware-free ltmdmnt.sys files for every applicable version of Windows. Please follow the steps below to download and properly replace you file:

Locate your Windows operating system version in the list of below "Download ltmdmnt.sys Files".
Click the appropriate "Download Now" button and download your Windows file version.
Copy the file into the appropriate directory for your Windows version:

Windows 8: C:\Windows\System32\DriverStore\FileRepository\mdmagrm.inf_x86_8ff94c5737626019\
Windows 8.1: C:\Windows\System32\DriverStore\FileRepository\mdmagrm.inf_x86_8ff94c5737626019\
Windows 10: C:\Windows\System32\DriverStore\FileRepository\mdmagrm.inf_x86_1f3a48f1a3a6663d\

Restart your computer.

If this final step has failed and you're still encountering the error, you're only remaining option is to do a clean installation of Windows 10.

GEEK TIP : We must emphasize that reinstalling Windows will be a very time-consuming and advanced task to resolve ltmdmnt.sys problems. To avoid data loss, you must be sure that you have backed-up all of your important documents, pictures, software installers, and other personal data before beginning the process. If you are not currently backing up your data, you need to do so immediately.

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Download ltmdmnt.sys Files (Malware-Tested 100% Clean)

CAUTION : We strongly advise against downloading and copying ltmdmnt.sys to your appropriate Windows system directory. Microsoft typically does not release Windows SYS files for download because they are bundled together inside of a software installer. The installer's task is to ensure that all correct verifications have been made before installing and placing ltmdmnt.sys and all other SYS files for Windows. An incorrectly installed SYS file may create system instability and could cause your program or operating system to stop functioning altogether. Proceed with caution.

Windows 10

File Name

Software Version

File Version

Architecture

ltmdmnt.sys

6.0.5303.0

8.36

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 10
Software:	Agere V.92 Data+Fax Modem Version 8.36
Software Version:	6.0.5303.0
File Version:	8.36
File Size:	503296
File Date:	07/25/2012
MD5 Checksum:	838df9675a08116f057b6bc530fbbe15
SHA1 Checksum:	a9bc8dd49aa47be8928511f0c4938f833653dd66
SHA256 Checksum:	55b7c54d1e5a4eae0c90b648884187f01d4254fac6b08ccbda6ab630790db432
CRC32:
File Directory Location:	C:\Windows\System32\DriverStore\FileRepository ...

File Version, System, and Machine Information
File Type:	Win32 EXE
Image Version:	6.0
Initialized Data Size:	205312
Linker Version:	8.0
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Native
Subsystem Version:	6.0
File Modification Date/Time:	07/25/2012

Windows 8.1

File Name

Software Version

File Version

Architecture

ltmdmnt.sys

6.0.5303.0

8.36

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 8.1
Software:	Agere V.92 Data+Fax Modem Version 8.36
Software Version:	6.0.5303.0
File Version:	8.36
File Size:	503296
File Date:	07/25/2012
MD5 Checksum:	838df9675a08116f057b6bc530fbbe15
SHA1 Checksum:	a9bc8dd49aa47be8928511f0c4938f833653dd66
SHA256 Checksum:	55b7c54d1e5a4eae0c90b648884187f01d4254fac6b08ccbda6ab630790db432
CRC32:
File Directory Location:	C:\Windows\System32\DriverStore\FileRepository ...

File Version, System, and Machine Information
File Type:	Win32 EXE
Image Version:	6.0
Initialized Data Size:	205312
Linker Version:	8.0
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Native
Subsystem Version:	6.0
File Modification Date/Time:	07/25/2012

Windows 8

File Name

Software Version

File Version

Architecture

ltmdmnt.sys

6.0.5303.0

8.36

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 8
Software:	Agere V.92 Data+Fax Modem Version 8.36
Software Version:	6.0.5303.0
File Version:	8.36
File Size:	503296
File Date:	07/25/2012
MD5 Checksum:	838df9675a08116f057b6bc530fbbe15
SHA1 Checksum:	a9bc8dd49aa47be8928511f0c4938f833653dd66
SHA256 Checksum:	55b7c54d1e5a4eae0c90b648884187f01d4254fac6b08ccbda6ab630790db432
CRC32:
File Directory Location:	C:\Windows\System32\DriverStore\FileRepository ...

File Version, System, and Machine Information
File Type:	Win32 EXE
Image Version:	6.0
Initialized Data Size:	205312
Linker Version:	8.0
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Native
Subsystem Version:	6.0
File Modification Date/Time:	07/25/2012

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Files Related to ltmdmnt.sys

SYS Files Related to ltmdmnt.sys

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
sonydcam.sys	Windows System Configuration	Windows Vista	33536	C:\Windows\Fonts\
AngelUsb.sys	Lumanate, Inc. Angel USB WDM Driver	Angel USB (1.1)	429952	C:\$WINDOWS.~BT\boot\
tdi.sys	TDI Wrapper	Microsoft® Windows® Operating System (6.0.6002.18005)	26112	C:\Windows\Logs\DPX\
usbrpm.sys	Windows USB Redirection Policy Manager	Microsoft® Windows® Operating System (6.2.9200.16384)	26112	C:\Windows\Panther\UnattendGC\
rtl8192se.sys	Realtek RTL81892SE NDIS Driverr	Realtek RTL81892SE Wireless LAN PCI-E NIC (2021.2.0327.2013)	1120840	C:\Windows\System32\LogFiles\WMI\RtBackup\

Other Files Related to ltmdmnt.sys

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OneX_v1.xsd	XML Schema Definition	Windows 7	5957	C:\Windows\L2Schemas\
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WWAN_profile_v1.xsd	XML Schema Definition	Windows 7	6201	C:\Windows\L2Schemas\
WWAN_profile_v1.xsd	XML Schema Definition	Windows 10	6201	C:\Windows\L2Schemas\
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