Microsoft Windows SYS Dot4usb.sys

Fixing Dot4usb.sys Issues - How to Download and Repair

Last Updated: 11/27/2023
[Average Read Time: 4.5 minutes]

Dot4usb.sys uses the SYS file extension, which is more specifically known as a DOT4USB filter driver file. It is classified as a Win64 EXE (Dynamic link library) file, created for Microsoft® Windows® Operating System by Microsoft.

The first version of Dot4usb.sys for Windows Vista was introduced on 11/08/2006 in Windows Vista. On 07/22/2009, version 6.1.7600.16385 (win7_rtm.090713-1255) was released for Windows 7.

This article discusses complete file details, SYS file troubleshooting instructions for problems with Dot4usb.sys, and a comprehensive set of free downloads for every file version that has been catalogued by our team.

File Analysis Provided by Jason Geater (Author)

File Overview

General Information ^✻
File Name:	Dot4usb.sys
File Extension:	SYS file extension
Description:	DOT4USB filter driver
Object File Type:	Dynamic link library
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:	English (U.S.)
File Flags:	(none)
File Flags Mask:	0x003f
Entry Point:	0xd064
Code Size:	36352

View Other Dot4usb.sys Information

File Info	Description
File Size:	42 kB
File Modification Date/Time:	2009:07:14 00:00:20+00:00
File Inode Change Date/Time:	2017:11:05 07:07:16+00:00
File Type:	Win64 EXE
MIME Type:	application/octet-stream
Machine Type:	AMD AMD64
Time Stamp:	2009:07:14 00:00:20+00:00
PE Type:	PE32+
Linker Version:	9.0
Code Size:	36352
Initialized Data Size:	5632
Uninitialized Data Size:	0
Entry Point:	0xd064
OS Version:	6.1
Image Version:	6.1
Subsystem Version:	6.1
Subsystem:	Native
File Version Number:	6.1.7600.16385
Product Version Number:	6.1.7600.16385
File Flags Mask:	0x003f
File Flags:	(none)
File OS:	Windows NT 32-bit
Object File Type:	Dynamic link library
File Subtype:	0
Language Code:	English (U.S.)
Character Set:	Unicode
Company Name:	Microsoft Corporation
File Description:	DOT4USB filter driver
File Version:	6.1.7600.16385 (win7_rtm.090713-1255)
Internal Name:	dot4usb.sys
Legal Copyright:	© Microsoft Corporation. All rights reserved.
Original Filename:	dot4usb.sys
Product Name:	Microsoft® Windows® Operating System
Product Version:	6.1.7600.16385

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

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What are Dot4usb.sys Error Messages?

Dot4usb.sys Blue Screen of Death (BSOD) Errors

There are a number of reasons why you could be encountering issues with Dot4usb.sys. Most of the issues concerning sys files involve Blue Screen of Death (BSOD) errors. These types of Dot4usb.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:

Dot4usb.sys could not be found.
Dot4usb.sys failed to load.
The file Dot4usb.sys is missing or corrupt.
Windows failed to start - Dot4usb.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: Dot4usb.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] (Dot4usb.sys).

STOP 0x0000007E: SYSTEM THREAD EXCEPTION NOT HANDLED (Dot4usb.sys) STOP 0x0000001E: KMODE EXCEPTION NOT HANDLED (Dot4usb.sys) STOP 0x00000050: PAGE FAULT IN A NONPAGED AREA (Dot4usb.sys) STOP 0x0000003B: SYSTEM SERVICE EXCEPTION (Dot4usb.sys) STOP 0×0000007A: KERNEL DATA INPAGE (Dot4usb.sys) STOP 0x0000000A: IRQL NOT LESS EQUAL (Dot4usb.sys)

It's Critical to Resolve Blue Screen of Death Errors

In the majority of cases, you will encounter Dot4usb.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 Dot4usb.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 Dot4usb.sys Blue Screen of Death error after recent changes.

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How to Fix Dot4usb.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 Dot4usb.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 Dot4usb.sys error, please proceed to the Step 2 below.

Step 2: Run SFC (System File Checker) to restore the corrupt or missing Dot4usb.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 Dot4usb.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 Dot4usb.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 Dot4usb.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 Dot4usb.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 Dot4usb.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 Dot4usb.sys file version. We maintain a comprehensive database of 100% malware-free Dot4usb.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 Dot4usb.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\dot4.inf_34561a63\
Windows Vista: C:\Windows\System32\DriverStore\FileRepository\dot4.inf_179e5903\
Windows 7: C:\Windows\System32\DriverStore\FileRepository\dot4.inf_amd64_neutral_b89cfac15ccb2fba\

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 7.

GEEK TIP : We must emphasize that reinstalling Windows will be a very time-consuming and advanced task to resolve Dot4usb.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 Dot4usb.sys Files (Malware-Tested 100% Clean)

CAUTION : We strongly advise against downloading and copying Dot4usb.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 Dot4usb.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 Vista

File Name

Software Version

File Version

Architecture

Dot4usb.sys

32-bit (x32)

Expand for Detailed File Information +

OS Version:	Windows Vista
File Size:	42496
MD5 Checksum:	5195de472b8223a32766d6ebef7517c7
SHA1 Checksum:	4ecf346a2aa552337b1f11dfa78c862184d55234
SHA256 Checksum:	328ac670774edc32c29017e7a5188ae0b42ed4af38eabfe6825223e5578fac55
CRC32:
File Directory Location:	C:\Windows\System32\DriverStore\FileRepository ...

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

Dot4usb.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:	42496
File Date:	01/21/2008
MD5 Checksum:	4adccf0124f2b6911d3786a5d0e779e5
SHA1 Checksum:	5a4c234605081d711c26c7a9958c964a40301c0e
SHA256 Checksum:	950b6fa2b9abf353036a64133ed441ef58eee36dc4bf5d5c4ffb71796438b5aa
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:	5632
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 7

File Name

Software Version

File Version

Architecture

Dot4usb.sys

6.1.7600.16385

6.1.7600.16385 (win7_rtm.090713-1255)

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 7
Software:	Microsoft® Windows® Operating System
Software Version:	6.1.7600.16385
File Version:	6.1.7600.16385 (win7_rtm.090713-1255)
File Size:	43008
File Date:	07/14/2009
MD5 Checksum:	fd05a02b0370bc3000f402e543ca5814
SHA1 Checksum:	660a706308e259d82c11abe4f1ff636f561cdd3a
SHA256 Checksum:	089b1113e640f495f470e8f57060b89546270481b309dc8ed3c3d13a849076a3
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:	5632
Linker Version:	9.0
Machine Type:	AMD AMD64
PE Type:	PE32+
Subsystem:	Native
Subsystem Version:	6.1
File Modification Date/Time:	07/14/2009

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Files Related to Dot4usb.sys

SYS Files Related to Dot4usb.sys

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
arc.sys	Adaptec RAID Storport Driver	Adaptec RAID Controller (5.2.0.18702)	91888	C:\Windows\Fonts\
ipnat.sys	IP Network Address Translator	Microsoft® Windows® Operating System (6.3.9600.16477)	126976	C:\Windows\Panther\UnattendGC\
serenum.sys	Windows System Configuration	Windows Vista	23040	C:\Windows\Fonts\
hwpolicy.sys	Hardware Policy Driver	Microsoft® Windows® Operating System (6.2.9200.16384)	24304	C:\Windows\System32\Sysprep\Panther\
RTL85n86.sys	Realtek 8180/8185 Wireless Device	Realtek 8180/8185 Wireless Adapters (6.1125.0615.2010)	1805824	C:\Windows\System32\LogFiles\WMI\RtBackup\

Other Files Related to Dot4usb.sys

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
OneX_v1.xsd	XML Schema Definition	Windows 8.1	5957	C:\Windows\L2Schemas\
WLAN_profile_v1.xsd	XML Schema Definition	Windows 8.1	16142	C:\Windows\L2Schemas\
WLAN_profile_v1.xsd	XML Schema Definition	Windows Vista	15591	C:\Windows\L2Schemas\
WLAN_policy_v1.xsd	XML Schema Definition	Windows Vista	6446	C:\Windows\L2Schemas\
LAN_profile_v1.xsd	XML Schema Definition	Windows Vista	2241	C:\Windows\L2Schemas\

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