Microsoft Windows SYS AGP440.sys

How to Download and Repair AGP440.sys (3 Step Guide)

Last Updated: 12/10/2025
[Reading Time Required: 3.5 minutes]

AGP440.sys is considered a type of 440 NT AGP Filter file. It is most-commonly used in Microsoft® Windows® Operating System developed by Microsoft. It uses the SYS file extension and is considered a Win32 EXE (Dynamic link library) file.

The first release of AGP440.sys for the Windows Vista platform was on 11/08/2006 for Windows Vista. The latest file version for Windows 8.1 is v6.3.9600.16384 (winblue_rtm.130821-1623) released on 10/18/2013. AGP440.sys is bundled with the software package in Windows Vista, Windows 8.1, and Windows 8.

In this article, you will find detailed AGP440.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:	AGP440.sys
File Extension:	SYS file extension
Description:	440 NT AGP Filter
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:	0x3192
Code Size:	39936

View Other AGP440.sys Information

File Info	Description
File Size:	55 kB
File Modification Date/Time:	2013:08:22 05:33:26+00:00
File Inode Change Date/Time:	2017:11:05 07:04:28+00:00
File Type:	Win32 EXE
MIME Type:	application/octet-stream
Machine Type:	Intel 386 or later, and compatibles
Time Stamp:	2013:08:22 04:11:13+00:00
PE Type:	PE32
Linker Version:	11.0
Code Size:	39936
Initialized Data Size:	6656
Uninitialized Data Size:	0
Entry Point:	0x3192
OS Version:	6.3
Image Version:	6.3
Subsystem Version:	6.3
Subsystem:	Native
File Version Number:	6.3.9600.16384
Product Version Number:	6.3.9600.16384
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:	440 NT AGP Filter
File Version:	6.3.9600.16384 (winblue_rtm.130821-1623)
Internal Name:	agp440.sys
Legal Copyright:	© Microsoft Corporation. All rights reserved.
Original Filename:	agp440.sys
Product Name:	Microsoft® Windows® Operating System
Product Version:	6.3.9600.16384

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

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What are AGP440.sys Error Messages?

AGP440.sys Blue Screen of Death (BSOD) Errors

There are a number of reasons why you could be encountering issues with AGP440.sys. Most of the issues concerning sys files involve Blue Screen of Death (BSOD) errors. These types of AGP440.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:

AGP440.sys could not be found.
AGP440.sys failed to load.
The file AGP440.sys is missing or corrupt.
Windows failed to start - AGP440.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: AGP440.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] (AGP440.sys).

STOP 0x0000003B: SYSTEM SERVICE EXCEPTION (AGP440.sys) STOP 0x00000050: PAGE FAULT IN A NONPAGED AREA (AGP440.sys) STOP 0x0000000A: IRQL NOT LESS EQUAL (AGP440.sys) STOP 0x0000001E: KMODE EXCEPTION NOT HANDLED (AGP440.sys) STOP 0×0000007A: KERNEL DATA INPAGE (AGP440.sys) STOP 0x0000007E: SYSTEM THREAD EXCEPTION NOT HANDLED (AGP440.sys)

It's Critical to Resolve Blue Screen of Death Errors

In the majority of cases, you will encounter AGP440.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 AGP440.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 AGP440.sys Blue Screen of Death error after recent changes.

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How to Fix AGP440.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 AGP440.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 AGP440.sys error, please proceed to the Step 2 below.

Step 2: Run SFC (System File Checker) to restore the corrupt or missing AGP440.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 AGP440.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 AGP440.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 AGP440.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 AGP440.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 AGP440.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 AGP440.sys file version. We maintain a comprehensive database of 100% malware-free AGP440.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 AGP440.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\machine.inf_986ce78a\
Windows Vista: C:\Windows\System32\DriverStore\FileRepository\machine.inf_eee87d92\
Windows Vista: C:\Windows\System32\drivers\
Windows Vista: C:\Windows\System32\DriverStore\FileRepository\machine.inf_c41411ff\
Windows 7: C:\Windows\System32\DriverStore\FileRepository\machine.inf_amd64_neutral_a2f120466549d68b\
Show 5 more directories +

Windows 7: C:\Windows\System32\drivers\
Windows 8: C:\Windows\System32\drivers\
Windows 8: C:\Windows\System32\DriverStore\FileRepository\machine.inf_x86_38ff1f7a86c4c6d7\
Windows 8.1: C:\Windows\System32\drivers\
Windows 8.1: C:\Windows\System32\DriverStore\FileRepository\machine.inf_x86_01c2385c3a22f281\

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 8.1.

GEEK TIP : We must emphasize that reinstalling Windows will be a very time-consuming and advanced task to resolve AGP440.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 AGP440.sys Files (Malware-Tested 100% Clean)

CAUTION : We strongly advise against downloading and copying AGP440.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 AGP440.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

AGP440.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:	64568
File Date:	01/21/2008
MD5 Checksum:	f6f6793b7f17b550ecfdbd3b229173f7
SHA1 Checksum:	cff2dae15f1b2551b37bca9b7b3a5d0604c4bb03
SHA256 Checksum:	7eb12a9372b7966440e39f1b567a43c21231d67ddfaa9c1decc7e68627f82346
CRC32:
File Directory Location:	C:\Windows\System32\DriverStore\FileRepository ... C:\Windows\System32\DriverStore\FileRepository ... C:\Windows\System32\drivers\

File Version, System, and Machine Information
File Type:	Win64 EXE
Image Version:	6.0
Initialized Data Size:	7168
Linker Version:	8.0
Machine Type:	AMD AMD64
PE Type:	PE32+
Subsystem:	Native
Subsystem Version:	6.0
File Modification Date/Time:	01/21/2008

AGP440.sys

32-bit (x32)

Expand for Detailed File Information +

OS Version:	Windows Vista
File Size:	62056
MD5 Checksum:	5ccdd13bc602ae33cd8b62d33c29ab72
SHA1 Checksum:	1619103672be37da9e4afc019e16a2e01916af36
SHA256 Checksum:	635ba5815b4add88a5acd0fb65d6953c21675d3e147fc27311a8f2c1f142682d
CRC32:
File Directory Location:	C:\Windows\System32\DriverStore\FileRepository ...

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

Windows 8.1

File Name

Software Version

File Version

Architecture

AGP440.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:	56160
File Date:	08/22/2013
MD5 Checksum:	7a706dcf874214097a30694d3b686866
SHA1 Checksum:	529884dbe9550a5185bc982cdb3a0568c94e8470
SHA256 Checksum:	c565b0a0f59a79259d0d3958ff3faae252fcc2bf3964c426b37f8c3830a0c216
CRC32:
File Directory Location:	C:\Windows\System32\drivers\ C:\Windows\System32\DriverStore\FileRepository ...

File Version, System, and Machine Information
File Type:	Win32 EXE
Image Version:	6.3
Initialized Data Size:	6656
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

AGP440.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:	55536
File Date:	07/26/2012
MD5 Checksum:	73bb2c687305c4195ed7511587b041aa
SHA1 Checksum:	e4ef1ec9a23f1b4aa85b75387e2798db8a443903
SHA256 Checksum:	af3151c3bdbeeef422b6a2672e376aa0fc0af5e800a48659256cde7e522fbe13
CRC32:
File Directory Location:	C:\Windows\System32\drivers\ C:\Windows\System32\DriverStore\FileRepository ...

File Version, System, and Machine Information
File Type:	Win32 EXE
Image Version:	6.2
Initialized Data Size:	6144
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

AGP440.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:	61008
File Date:	07/14/2009
MD5 Checksum:	608c14dba7299d8cb6ed035a68a15799
SHA1 Checksum:	ad200f6ad9585e26d9f72e05da03c87ec096a496
SHA256 Checksum:	45360f89640bf1127c82a32393bd76205e4fa067889c40c491602f370c09282a
CRC32:
File Directory Location:	C:\Windows\System32\DriverStore\FileRepository ... C:\Windows\System32\drivers\

File Version, System, and Machine Information
File Type:	Win64 EXE
Image Version:	6.1
Initialized Data Size:	7168
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 AGP440.sys

SYS Files Related to AGP440.sys

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
rtl8192se.sys	Realtek RTL81892SE NDIS Driverr	Realtek RTL81892SE Wireless LAN PCI-E NIC (2020.9.0218.2012)	1121792	C:\Windows\System32\LogFiles\WMI\RtBackup\
hidbth.sys	Bluetooth Miniport Driver for HID Devices	Microsoft® Windows® Operating System (6.0.6002.18005)	36864	C:\Windows\Fonts\
hidclass.sys	Hid Class Library	Microsoft® Windows® Operating System (10.0.15063.0)	125440	C:\Windows\Fonts\
mrxsmb.sys	Windows NT SMB Minirdr	Microsoft® Windows® Operating System (6.3.9600.17396)	330752	C:\Windows\Panther\UnattendGC\
win32kfull.sys	Full/Desktop Win32k Kernel Driver	Microsoft® Windows® Operating System (10.0.15063.0)	2957824	C:\Program Files (x86)\Common Files\System\msadc\

Other Files Related to AGP440.sys

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
OneX_v1.xsd	XML Schema Definition	Windows 8	5957	C:\Windows\L2Schemas\
OneX_v1.xsd	XML Schema Definition	Windows XP	5957	C:\Windows\L2Schemas\
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\
WWAN_profile_v1.xsd	XML Schema Definition	Microsoft Office Access 2010 14	6201	C:\Windows\Temp\527D94AF-D053-4381-B105-0D815D5...

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