Microsoft Windows SYS qlstrmc.sys

Download Qlstrmc.sys and Fix BSOD Errors

Last Updated: 11/26/2023
[Time to Read Article: 5 minutes]

SYS files such as qlstrmc.sys are categorized as Win32 EXE (Driver) files. As a Qualstar 2xxxx and 4xxx Medium changer driver file, it was created for use in Microsoft® Windows® Operating System by Microsoft.

The first version of qlstrmc.sys for Windows Vista was introduced on 11/08/2006 in Windows Vista. The latest version update [v10.0.15063.0 (WinBuild.160101.0800)] for Windows was 10 released on 07/29/2015. qlstrmc.sys is included in Windows 10, Windows 8.1, and Windows 8.

In this short article, you will discover detailed file information, steps for troubleshooting SYS file problems with qlstrmc.sys, and list of free downloads for every version that exists in our comprehensive file directory.

File Analysis Provided by Jason Geater (Author)

File Overview

General Information ^✻
File Name:	qlstrmc.sys
File Extension:	SYS file extension
Description:	Qualstar 2xxxx and 4xxx Medium changer driver
Object File Type:	Driver
File Operating System:	Windows NT 32-bit
MIME Type:	application/octet-stream
User Popularity Rating:

Developer and Software Information
Software Developer:	Microsoft Corporation
Software Program:	Microsoft® Windows® Operating System
Legal Copyright:	© Microsoft Corporation. All rights reserved.

File Details
Character Set:	Unicode
Language Code:	Neutral
File Flags:	(none)
File Flags Mask:	0x003f
Entry Point:	0x50a0
Code Size:	6656

View Other qlstrmc.sys Information

File Info	Description
File Size:	11 kB
File Modification Date/Time:	2017:03:18 18:18:17+00:00
File Inode Change Date/Time:	2017:11:05 07:07:54+00:00
File Type:	Win32 EXE
MIME Type:	application/octet-stream
Warning:	Possibly corrupt Version resource
Machine Type:	Intel 386 or later, and compatibles
Time Stamp:	1984:03:19 09:29:38+00:00
PE Type:	PE32
Linker Version:	14.10
Code Size:	6656
Initialized Data Size:	3584
Uninitialized Data Size:	0
Entry Point:	0x50a0
OS Version:	10.0
Image Version:	10.0
Subsystem Version:	10.0
Subsystem:	Native
File Version Number:	10.0.15063.0
Product Version Number:	10.0.15063.0
File Flags Mask:	0x003f
File Flags:	(none)
File OS:	Windows NT 32-bit
Object File Type:	Driver
File Subtype:	7
Language Code:	Neutral
Character Set:	Unicode
Company Name:	Microsoft Corporation
File Description:	Qualstar 2xxxx and 4xxx Medium changer driver
File Version:	10.0.15063.0 (WinBuild.160101.0800)
Internal Name:	qlstrmc.sys
Legal Copyright:	© Microsoft Corporation. All rights reserved.
Original Filename:	qlstrmc.sys
Product Name:	Microsoft® Windows® Operating System
Product Version:	10.0.15063.0

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

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What are qlstrmc.sys Error Messages?

qlstrmc.sys Blue Screen of Death (BSOD) Errors

There are a number of reasons why you could be encountering issues with qlstrmc.sys. Most of the issues concerning sys files involve Blue Screen of Death (BSOD) errors. These types of qlstrmc.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:

qlstrmc.sys could not be found.
qlstrmc.sys failed to load.
The file qlstrmc.sys is missing or corrupt.
Windows failed to start - qlstrmc.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: qlstrmc.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] (qlstrmc.sys).

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

It's Critical to Resolve Blue Screen of Death Errors

In the majority of cases, you will encounter qlstrmc.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 qlstrmc.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 qlstrmc.sys Blue Screen of Death error after recent changes.

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How to Fix qlstrmc.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 qlstrmc.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 qlstrmc.sys error, please proceed to the Step 2 below.

Step 2: Run SFC (System File Checker) to restore the corrupt or missing qlstrmc.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 qlstrmc.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 qlstrmc.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 qlstrmc.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 qlstrmc.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 qlstrmc.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 qlstrmc.sys file version. We maintain a comprehensive database of 100% malware-free qlstrmc.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 qlstrmc.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 Vista: C:\Windows\System32\DriverStore\FileRepository\mchgr.inf_999a0955\
Windows Vista: C:\Windows\System32\DriverStore\FileRepository\mchgr.inf_be757aa3\
Windows 7: C:\Windows\System32\DriverStore\FileRepository\mchgr.inf_amd64_neutral_407146dba80d1566\
Windows 8: C:\Windows\System32\DriverStore\FileRepository\mchgr.inf_x86_d68c7653ccfc8b46\
Windows 8.1: C:\Windows\System32\DriverStore\FileRepository\mchgr.inf_x86_86a2bc5c83e005e4\
Show 1 more directory +

Windows 10: C:\Windows\System32\DriverStore\FileRepository\mchgr.inf_x86_ba100587bcd18b1c\

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 qlstrmc.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 qlstrmc.sys Files (Malware-Tested 100% Clean)

CAUTION : We strongly advise against downloading and copying qlstrmc.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 qlstrmc.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

qlstrmc.sys

10.0.15063.0

10.0.15063.0 (WinBuild.160101.0800)

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 10
Software:	Microsoft® Windows® Operating System
Software Version:	10.0.15063.0
File Version:	10.0.15063.0 (WinBuild.160101.0800)
File Size:	11264
File Date:	03/18/2017
MD5 Checksum:	d9846597caba44fdbfce8b5b3a0ae00d
SHA1 Checksum:	291a7d842b05958cb4b0c74809e5fc4eba596a28
SHA256 Checksum:	b87de8521cd41857762da5cadfa12974d1d690cc51da2a7a7a0a8ddbc7980785
CRC32:
File Directory Location:	C:\Windows\System32\DriverStore\FileRepository ...

File Version, System, and Machine Information
File Type:	Win32 EXE
Image Version:	10.0
Initialized Data Size:	3584
Linker Version:	14.10
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Native
Subsystem Version:	10.0
File Modification Date/Time:	03/18/2017

Windows Vista

File Name

Software Version

File Version

Architecture

qlstrmc.sys

32-bit (x32)

Expand for Detailed File Information +

OS Version:	Windows Vista
File Size:	13824
MD5 Checksum:	6a48a230370081d32bc5c68d290ca82c
SHA1 Checksum:	84af83e3748ed15435b6a4932a8e7d300f9d10c9
SHA256 Checksum:	3577fc350ed13531b1f033ffa2c27c9558123a96b3ee99637eb1b00ac4653124
CRC32:
File Directory Location:	C:\Windows\System32\DriverStore\FileRepository ...

File Version, System, and Machine Information
There is no information available.

qlstrmc.sys

6.0.6001.18000

6.0.6001.18000 (longhorn_rtm.080118-1840)

32-bit (x32)

Expand for Detailed File Information +

OS Version:	Windows Vista
Software:	Microsoft® Windows® Operating System
Software Version:	6.0.6001.18000
File Version:	6.0.6001.18000 (longhorn_rtm.080118-1840)
File Size:	13824
File Date:	01/21/2008
MD5 Checksum:	1f83d3ad39cafe21a3915105f04dd6d9
SHA1 Checksum:	50bb9ed9bd43590badb04ed62ae71aeb8d4fb5bd
SHA256 Checksum:	f1e9713d92cd7c80704c589311d90d9b4886698ea8535756af263bb07c832633
CRC32:
File Directory Location:	C:\Windows\System32\DriverStore\FileRepository ...

File Version, System, and Machine Information
File Type:	Win64 EXE
Image Version:	6.0
Initialized Data Size:	3072
Linker Version:	8.0
Machine Type:	AMD AMD64
PE Type:	PE32+
Subsystem:	Native
Subsystem Version:	6.0
File Modification Date/Time:	01/21/2008

Windows 8.1

File Name

Software Version

File Version

Architecture

qlstrmc.sys

6.3.9600.16384

6.3.9600.16384 (winblue_rtm.130821-1623)

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 8.1
Software:	Microsoft® Windows® Operating System
Software Version:	6.3.9600.16384
File Version:	6.3.9600.16384 (winblue_rtm.130821-1623)
File Size:	10752
File Date:	08/22/2013
MD5 Checksum:	25b12ad2ece569529b493097380b766c
SHA1 Checksum:	9c0148a8116791b0fe4127b151a033c44ef6eb62
SHA256 Checksum:	b0b446c2bf653c9eb94f0b631ebeac5c19e434561aedf86e7f491acc25958296
CRC32:
File Directory Location:	C:\Windows\System32\DriverStore\FileRepository ...

File Version, System, and Machine Information
File Type:	Win32 EXE
Image Version:	6.3
Initialized Data Size:	3072
Linker Version:	11.0
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Native
Subsystem Version:	6.3
File Modification Date/Time:	08/22/2013

Windows 8

File Name

Software Version

File Version

Architecture

qlstrmc.sys

6.2.9200.16384

6.2.9200.16384 (win8_rtm.120725-1247)

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 8
Software:	Microsoft® Windows® Operating System
Software Version:	6.2.9200.16384
File Version:	6.2.9200.16384 (win8_rtm.120725-1247)
File Size:	10752
File Date:	07/26/2012
MD5 Checksum:	a6073ea2b74c0818c48e189df5b51561
SHA1 Checksum:	25bde19215da3d50ef0c3660107bc10d33d107e2
SHA256 Checksum:	81532c2bfe7fc52cbb52ffeefbfb3667d8149fb5b42cd2fcd2924759e6ff40a2
CRC32:
File Directory Location:	C:\Windows\System32\DriverStore\FileRepository ...

File Version, System, and Machine Information
File Type:	Win32 EXE
Image Version:	6.2
Initialized Data Size:	3072
Linker Version:	10.10
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Native
Subsystem Version:	6.2
File Modification Date/Time:	07/26/2012

Windows 7

File Name

Software Version

File Version

Architecture

qlstrmc.sys

6.1.7601.17514

6.1.7601.17514 (win7sp1_rtm.101119-1850)

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 7
Software:	Microsoft® Windows® Operating System
Software Version:	6.1.7601.17514
File Version:	6.1.7601.17514 (win7sp1_rtm.101119-1850)
File Size:	13824
File Date:	11/21/2010
MD5 Checksum:	1f8dff556ff594cd0b60c8df46f3a5ba
SHA1 Checksum:	e12dc3fbf4abebd3f7aedd0bd2085e5f5720ab87
SHA256 Checksum:	f33af04fbe01a84ee5cca0fb35c5dbf8a10b590a0dbb6e28ea4ab3101e643595
CRC32:
File Directory Location:	C:\Windows\System32\DriverStore\FileRepository ...

File Version, System, and Machine Information
File Type:	Win64 EXE
Image Version:	6.1
Initialized Data Size:	3072
Linker Version:	9.0
Machine Type:	AMD AMD64
PE Type:	PE32+
Subsystem:	Native
Subsystem Version:	6.1
File Modification Date/Time:	11/21/2010

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Files Related to qlstrmc.sys

SYS Files Related to qlstrmc.sys

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
cxbp0wdm.sys	PC/SC IFD handler for CardMan 4040	PC/SC IFD handler for CardMan 4040 (1.1.1.0)	64000	C:\Windows\Fonts\
athrx.sys	Atheros Extensible Wireless LAN device driver	Driver for Atheros CB42/CB43/MB42/MB43 Network Adapter (7.0.0.121)	585216	C:\Windows\Fonts\
condrv.sys	Console Driver	Microsoft® Windows® Operating System (10.0.15063.0)	43424	C:\Windows\System32\LogFiles\WMI\RtBackup\
mstee.sys	WDM Tee/Communication Transform Filter	Microsoft® Windows® Operating System (6.3.9600.16384)	6400	C:\Windows\System32\Sysprep\Panther\
null.sys	NULL Driver	Microsoft® Windows® Operating System (5.1.2600.0)	2944	C:\Windows\Panther\UnattendGC\

Other Files Related to qlstrmc.sys

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
OneX_v1.xsd	XML Schema Definition	Windows Vista	5957	C:\Windows\L2Schemas\
OneX_v1.xsd	XML Schema Definition	Windows 10	5957	C:\Windows\L2Schemas\
WWAN_profile_v1.xsd	XML Schema Definition	Windows 10	6201	C:\Windows\L2Schemas\
WLANAP_profile_v1.xsd	XML Schema Definition	Windows 7	7504	C:\Windows\L2Schemas\
p2057.ngr	NEPLAN Graphic Data	Windows 7	3188068	C:\Windows\Speech\Engines\SR\en-GB\

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