Dropbox, Inc. Dropbox SYS dbx-dev.sys

Repair and Download Dbx-dev.sys (Fix BSOD Errors)

Last Updated: 12/08/2023
[Time to Read: ~3-5 minutes]

The development of Dropbox by Dropbox, Inc. prompted the latest creation of dbx-dev.sys. It is also known as a Dropbox Filter Driver file (file extension SYS), which is classified as a type of Win64 EXE (Driver) file.

The first version of dbx-dev.sys was released for the Windows 10 Operating System on 05/07/2019 inside Dropbox 72.4.136. This file release marks the latest and most updated version from Dropbox, Inc..

Below, you find comprehensive file information, instructions for simple SYS file troubleshooting, and list of free dbx-dev.sys downloads for each available file version.

File Analysis Provided by Jason Geater (Author)

File Overview

General Information ^✻
File Name:	dbx-dev.sys
File Extension:	SYS file extension
Description:	Dropbox Filter Driver
Object File Type:	Driver
File Operating System:	Windows NT
MIME Type:	application/octet-stream
User Popularity Rating:

Developer and Software Information
Software Developer:	Dropbox, Inc.
Software Program:	Dropbox
Legal Copyright:	Dropbox, Inc.

File Details
Character Set:	Unicode
Language Code:	English (U.S.)
File Flags:	(none)
File Flags Mask:	0x003f
Entry Point:	0xb99c
Code Size:	31232

View Other dbx-dev.sys Information

File Info	Description
File Size:	46 kB
File Modification Date/Time:	2019:12:04 17:15:39+00:00
File Type:	Win64 EXE
MIME Type:	application/octet-stream
Machine Type:	AMD AMD64
Time Stamp:	2019:02:11 16:39:19+00:00
PE Type:	PE32+
Linker Version:	9.0
Code Size:	31232
Initialized Data Size:	6656
Uninitialized Data Size:	0
Entry Point:	0xb99c
OS Version:	6.1
Image Version:	6.1
Subsystem Version:	6.0
Subsystem:	Native
File Version Number:	1.0.25.0
Product Version Number:	0.0.0.0
File Flags Mask:	0x003f
File Flags:	(none)
File OS:	Windows NT
Object File Type:	Driver
File Subtype:	8
Language Code:	English (U.S.)
Character Set:	Unicode
Company Name:	Dropbox, Inc.
File Description:	Dropbox Filter Driver
File Version:	1.0.25.0
Internal Name:	Dbx.sys
Legal Copyright:	Dropbox, Inc.
Product Name:	Dropbox

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

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What are dbx-dev.sys Error Messages?

dbx-dev.sys Blue Screen of Death (BSOD) Errors

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

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

<strong>STOP 0x0000001E: KMODE EXCEPTION NOT HANDLED (dbx-dev.sys)</strong><br /><strong>STOP 0x0000007E: SYSTEM THREAD EXCEPTION NOT HANDLED (dbx-dev.sys)</strong><br /><strong>STOP 0x00000050: PAGE FAULT IN A NONPAGED AREA (dbx-dev.sys)</strong><br /><strong>STOP 0×0000007A: KERNEL DATA INPAGE (dbx-dev.sys)</strong><br /><strong>STOP 0x0000000A: IRQL NOT LESS EQUAL (dbx-dev.sys)</strong><br /><strong>STOP 0x0000003B: SYSTEM SERVICE EXCEPTION (dbx-dev.sys)</strong>

It's Critical to Resolve Blue Screen of Death Errors

In the majority of cases, you will encounter dbx-dev.sys BSOD errors after you've installed new hardware, software (Dropbox), or performed a failed Windows Update. In other cases, software corruption caused by a malware infection can lead to dbx-dev.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 dbx-dev.sys Blue Screen of Death error after recent changes.

Recommended Download (WinThruster): Optimize Your PC and Fix SYS File Association Errors.

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How to Fix dbx-dev.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 dbx-dev.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 dbx-dev.sys error, please proceed to the Step 2 below.

Step 2: If recently installed Dropbox (or related software), uninstall then try reinstalling Dropbox software.

You can uninstall Dropbox software by following these instructions (Windows XP, Vista, 7, 8, and 10):

Hit the Windows Start button
In the search box, type "Uninstall" and press "ENTER".
In the search results, find and click "Add or Remove Programs"
Find the entry for Dropbox 72.4.136 and click "Uninstall"
Follow the prompts for uninstallation.

After the software has been fully uninstalled, restart your PC and reinstall Dropbox software.

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

Dropbox 72.4.136

Dropbox, Inc.

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 dbx-dev.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 dbx-dev.sys error message, please proceed to next step. Please note that this final step is recommended for advanced PC users only.

Recommended Download (WinThruster): Optimize Your PC and Fix SYS File Association Errors.

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If Those Steps Fail: Download and Replace Your dbx-dev.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 dbx-dev.sys file version. We maintain a comprehensive database of 100% malware-free dbx-dev.sys files for every applicable version of Dropbox. Please follow the steps below to download and properly replace you file:

Locate your Windows operating system version in the list of below "Download dbx-dev.sys Files".
Click the appropriate "Download Now" button and download your Windows file version.
Copy this file to the appropriate Dropbox folder location:

Windows 10: C:\Program Files (x86)\Dropbox\Client\72.4.136\driver_x86\
Windows 10: C:\Windows\System32\drivers\
Windows 10: C:\Program Files (x86)\Dropbox\Client\72.4.136\driver_amd64\
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 dbx-dev.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.

Recommended Download (WinThruster): Optimize Your PC and Fix SYS File Association Errors.

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

CAUTION : We strongly advise against downloading and copying dbx-dev.sys to your appropriate Windows system directory. Dropbox, Inc. typically does not release Dropbox 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 dbx-dev.sys and all other SYS files for Dropbox. An incorrectly installed SYS file may create system instability and could cause your program or operating system to stop functioning altogether. Proceed with caution.

Dropbox 72.4.136

Dropbox 72.4.136

File Name

Software Version

File Version

Architecture

dbx-dev.sys

Dropbox 72.4.136 (05/07/2019)

1.0.25.0

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 10
Software:	Dropbox
Software Version:	0.0.0.0
File Version:	1.0.25.0
File Size:	36848
File Date:	12/04/2019
MD5 Checksum:	71003bceda45ed9160bdede9792bdbe7
SHA1 Checksum:	e367295dc36834909902a8e97232ce48055ea7ca
SHA256 Checksum:	f25d91e36b76cd49e98f02e6e4681a0f31c650eb4ef82b311d0bc4df5573158a
CRC32:
File Directory Location:	C:\Program Files (x86)\Dropbox\Client\72.4.136 ...

File Version, System, and Machine Information
File Type:	Win32 EXE
Image Version:	6.1
Initialized Data Size:	5120
Linker Version:	9.0
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Native
Subsystem Version:	6.0
File Modification Date/Time:	12/04/2019

dbx-dev.sys

Dropbox 72.4.136 (05/07/2019)

1.0.25.0

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 10
Software:	Dropbox
Software Version:	0.0.0.0
File Version:	1.0.25.0
File Size:	47600
File Date:	12/04/2019
MD5 Checksum:	13deed6a11f54fdb082fac9906b9866d
SHA1 Checksum:	3335bc66dded29afd8c7a688665833f23c856e69
SHA256 Checksum:	4269061949da67e35b2df4c13afdcc7bf7406366d199ac25d7a70393b2af9b5c
CRC32:
File Directory Location:	C:\Windows\System32\drivers\ C:\Program Files (x86)\Dropbox\Client\72.4.136 ...

File Version, System, and Machine Information
File Type:	Win64 EXE
Image Version:	6.1
Initialized Data Size:	6656
Linker Version:	9.0
Machine Type:	AMD AMD64
PE Type:	PE32+
Subsystem:	Native
Subsystem Version:	6.0
File Modification Date/Time:	12/04/2019

Recommended Download (WinThruster): Optimize Your PC and Fix SYS File Association Errors.

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Files Related to dbx-dev.sys

SYS Files Related to dbx-dev.sys

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
dbx-stable.sys	Dropbox Filter Driver	Dropbox 72.4.136	36848	C:\Program Files\WindowsApps\Microsoft.Office.O...
dbx-canary.sys	Dropbox Filter Driver	Dropbox 72.4.136	47600	C:\Program Files\WindowsApps\Microsoft.Office.O...
dbx-dev.sys	Dropbox Filter Driver	Dropbox 72.4.136	47600	C:\Program Files\WindowsApps\Microsoft.Office.O...
dbx-stable.sys	Dropbox Filter Driver	Dropbox 72.4.136	47600	C:\Program Files\WindowsApps\Microsoft.Office.O...
dbx-dev.sys	Dropbox Filter Driver	Dropbox 72.4.136	36848	C:\Program Files\WindowsApps\Microsoft.Office.O...

Other Files Related to dbx-dev.sys

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
CBS.log	Log	Dropbox 72.4.136	907516	C:\Windows\Logs\CBS\
api-ms-win-core-profil...	ApiSet Stub DLL	Microsoft® Windows® Operating System (10.0.17134.12)	17672	C:\Program Files (x86)\Dropbox\Client\72.4.136\
api-ms-win-core-heap-l...	ApiSet Stub DLL	Microsoft® Windows® Operating System (10.0.17134.12)	11112	C:\Users\Tester\AppData\Local\Microsoft\OneDriv...
api-ms-win-core-sysinf...	ApiSet Stub DLL	Microsoft® Windows® Operating System (10.0.17134.12)	12136	C:\Users\Tester\AppData\Local\Microsoft\OneDriv...
api-ms-win-core-synch-...	ApiSet Stub DLL	Microsoft® Windows® Operating System (10.0.17134.12)	20232	C:\Program Files (x86)\Dropbox\Client\72.4.136\

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