Microsoft Windows SYS spldr.sys

How to Download and Fix Spldr.sys Errors

Last Updated: 11/25/2023
[Average Article Time to Read: 4.7 minutes]

spldr.sys, also known as a loader for security processor file, was created by Microsoft for the development of Microsoft® Windows® Operating System. SYS files fall under under the Win64 EXE (Driver) file type category.

spldr.sys was initially released with Windows Vista on 11/08/2006 for the Windows Vista Operating System. On 07/22/2009, version 6.1.7127.0 (fbl_security_bugfix(sepbld-s).090511-0943) was released for Windows 7.

In this article, you will find detailed spldr.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:	spldr.sys
File Extension:	SYS file extension
Description:	loader for security processor
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:	English (U.S.)
File Flags:	Private build
File Flags Mask:	0x003f
Entry Point:	0x66e8
Code Size:	7168

View Other spldr.sys Information

File Info	Description
File Size:	19 kB
File Modification Date/Time:	2009:07:14 01:45:55+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:	2009:05:11 16:56:27+00:00
PE Type:	PE32+
Linker Version:	9.0
Code Size:	7168
Initialized Data Size:	4096
Uninitialized Data Size:	0
Entry Point:	0x66e8
OS Version:	6.1
Image Version:	6.1
Subsystem Version:	6.1
Subsystem:	Native
File Version Number:	6.1.7127.0
Product Version Number:	6.1.7127.0
File Flags Mask:	0x003f
File Flags:	Private build
File OS:	Windows NT 32-bit
Object File Type:	Driver
File Subtype:	0
Language Code:	English (U.S.)
Character Set:	Unicode
Company Name:	Microsoft Corporation
File Description:	loader for security processor
File Version:	6.1.7127.0 (fbl_security_bugfix(sepbld-s).090511-0943)
Internal Name:	spldr.sys
Legal Copyright:	© Microsoft Corporation. All rights reserved.
Original Filename:	spldr.sys
Product Name:	Microsoft® Windows® Operating System
Product Version:	6.1.7127.0

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

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What are spldr.sys Error Messages?

spldr.sys Blue Screen of Death (BSOD) Errors

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

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

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

It's Critical to Resolve Blue Screen of Death Errors

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

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

Step 2: Run SFC (System File Checker) to restore the corrupt or missing spldr.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 spldr.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 spldr.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 spldr.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 spldr.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 spldr.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 spldr.sys file version. We maintain a comprehensive database of 100% malware-free spldr.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 spldr.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\drivers\
Windows 7: C:\Windows\System32\drivers\

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

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

spldr.sys

6.0.6002.17001

6.0.6002.17001 (longhorn(sepbld-s).090112-1341)

32-bit (x32)

Expand for Detailed File Information +

OS Version:	Windows Vista
Software:	Microsoft® Windows® Operating System
Software Version:	6.0.6002.17001
File Version:	6.0.6002.17001 (longhorn(sepbld-s).090112-1341)
File Size:	19432
File Date:	04/11/2009
MD5 Checksum:	386c3c63f00a7040c7ec5e384217e89d
SHA1 Checksum:	bb9ed9f8729b9ca81d82244a50c611ebac4c71ae
SHA256 Checksum:	dd8766bcbd77ec6f67979a8b37b943a3a0e5478ce3fb129bf8fca29b66529721
CRC32:
File Directory Location:	C:\Windows\System32\drivers\

File Version, System, and Machine Information
File Type:	Win64 EXE
Image Version:	6.0
Initialized Data Size:	4096
Linker Version:	8.0
Machine Type:	AMD AMD64
PE Type:	PE32+
Subsystem:	Native
Subsystem Version:	6.0
File Modification Date/Time:	04/11/2009

Windows 7

File Name

Software Version

File Version

Architecture

spldr.sys

6.1.7127.0

6.1.7127.0 (fbl_security_bugfix(sepbld-s).090511-0943)

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 7
Software:	Microsoft® Windows® Operating System
Software Version:	6.1.7127.0
File Version:	6.1.7127.0 (fbl_security_bugfix(sepbld-s).090511-0943)
File Size:	19008
File Date:	07/14/2009
MD5 Checksum:	b9e31e5cacdfe584f34f730a677803f9
SHA1 Checksum:	52c9b0fbe594e635778332a8cacbffbd8beb8f74
SHA256 Checksum:	21a5130bd00089c609522a372018a719f8e37103d2dd22c59eacb393be35a063
CRC32:
File Directory Location:	C:\Windows\System32\drivers\

File Version, System, and Machine Information
File Type:	Win64 EXE
Image Version:	6.1
Initialized Data Size:	4096
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 spldr.sys

SYS Files Related to spldr.sys

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
flpydisk.sys	Floppy Driver	Microsoft® Windows® Operating System (10.0.15063.0)	20480	C:\Windows\Fonts\
i2omgmt.sys	I2O Utility Filter	Microsoft® Windows® Operating System (6.0.6000.16386)	18024	C:\Users\Tester\AppData\Local\Packages\Microsof...
megasas.sys	MEGASAS RAID Controller Driver for Windows	MEGASAS RAID Controller Driver for Windows (6.706.06.00)	52128	C:\Windows\Logs\DPX\
tpm.sys	TPM Device Driver	Microsoft® Windows® Operating System (6.2.9200.16384)	121584	C:\Windows\Fonts\
rassstp.sys	RAS SSTP Miniport Call Manager	Microsoft® Windows® Operating System (6.1.7600.16385)	83968	C:\Windows\Panther\UnattendGC\

Other Files Related to spldr.sys

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
OneX_v1.xsd	XML Schema Definition	Windows XP	5957	C:\Windows\L2Schemas\
WWAN_profile_v1.xsd	XML Schema Definition	Windows 8.1	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...
WLANAP_profile_v1.xsd	XML Schema Definition	Windows 10	7548	C:\Windows\L2Schemas\
WLAN_profile_v1.xsd	XML Schema Definition	Windows 8	15591	C:\Windows\L2Schemas\

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