Download and Fix security.dll

Sometimes Windows system displays error messages regarding corrupted or missing security.dll files. Situations like that can occur, for example, during a software installation process. Each software program requires certain resources, libraries, and source data to work properly. Corrupted or nonexistent security.dll file can therefore effect in failed execution of the started process.

security.dll file Security Support Provider Interface. The file was developed by for use with software. Here you will find detailed information about the file and instructions how to proceed in the event of security.dll related errors on your device. You can also download security.dll file compatible with Windows 10, Windows 8.1, Windows 8, Windows 7, Windows 7, Windows Vista, Windows Vista, Windows XP devices which will (most probably) allow you to solve the problem.

Compatible with: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows 7, Windows Vista, Windows Vista, Windows XP

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Fix security.dll errors

1 Information about security.dll file
2 Errors related to security.dll file
3 How to fix security.dll related errors?

3.1 Scanning for malicious software
3.2 System and driver update
3.3 System File Checker tool
3.4 System recovery

4 Download security.dll

4.1 List of security.dll file versions

File info

General information
Filename	security.dll
File extension	DLL
Description	Security Support Provider Interface

Software
Program	Microsoft® Windows® Operating System
Author	Microsoft Corporation

Details
MIME type	application/octet-stream
File type	Dynamic link library
System	Windows NT 32-bit
Copyrights	© Microsoft Corporation. All rights reserved.
Character set	Unicode
Language cod	English (U.S.)

Most common security.dll file related problems

There are various types of errors related to security.dll file. security.dll file may be located in wrong file directory on your device, may not be present in the system, or may be infected with malicious software and therefore not work correctly. Below is a list of most common error messages related to security.dll file. If you encounter one listed below (or similar), please consider the following suggestions.

security.dll is corrupted
security.dll cannot be located
Runtime Error - security.dll
security.dll file error
security.dll file cannot be loaded. Module was not found
cannot register security.dll file:
security.dll file could not be loaded
security.dll file doesn't exist

security.dll

Application could not be started because security.dll file is missing. Reinstall the application to solve the problem.

Problems related to security.dll can be addressed in various ways. Some methods are meant only for advanced users. If you don't have confidence in your skills, we suggest consulting a specialist. Fixing security.dll file errors should be approached with utmost caution for any mistakes can result in unstable or unproperly working system. If you have the necassary skills, please proceed.

How to fix security.dll errors in just few steps?

Remember, before taking any action related to system files perform a backup copy of your data!

security.dll file errors can be caused by various factors, so its is beneficial to try to fix them using various methods.

Step 1: Scan your computer for any malicious software

Windows files are commonly attacked by malicious software that prevents them from working properly. First step in addressing problems with security.dll file or any other Windows system files should be scanning the system for malicious software using an antivirus tool.

If by any chance you don't have any antivirus software installed on your system yet, you should do it immediately. Unprotected system is not only a source of file errors, but, more importantly, makes your system vulnerable to many dangers. If you don't know which antivirus tool to choose, consult this Wikipedia article – comparison of antivirus software.

Step 2: Update your system and drivers.

Installing relevant Microsoft Windows patches and updates may solve your problems related to security.dll file. Use dedicated Windows tool to perform the update.

Go to the Windows "Start" menu
Type "Windows Update" in the search field
Choose the appropriate software program (name may vary depending on your system version)
Check if your system is up to date. If any unapplied updates are listed, install them immediately.
After the update has been done,restart your computer in order to complete the process.

Beside updating the system, it is recommended that you install latest device drivers, as drivers can influence proper working of security.dll or other system files. In order to do so, go to your computer or device producer's website where you will find information regarding latest driver updates.

Step 3: Use System File Checker (SFC) tool

System File Checker is a Microsoft Windows tool. As the name suggests, the tool is used for identyfing and addressing system file related errors, including those related to security.dll file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the security.dll file with properly working version. To use the tool:

Go to the Windows "Start" menu
Type "cmd" in the search field
Locate "Command Prompt" result – don't run it yet:
Click the right mouse button and select "Run as Administrator" option
Type "sfc /scannow" in console prompt to start the program and follow the instructions

Step 4: Restoring Windows system

Another approach is to restore system to previous state, before the security.dll file error occured. In order to restore your system, follow the instructions below

Go to the Windows "Start" menu
Type "System Restore" in the search field
Start the system restore tool – it's name may differ depending on version of the system
The application will guide you through the process – read the messages carefully
After the process has finished, restart your computer.

If all the above-mentioned methods failed and the security.dll file problem has not been resolved, proceed to the next step. Remember that the following steps are intended only for advanced users.

Download and replace security.dll file

The last solution is to manually download and replace security.dll file in appropriate folder on the disk. Select file version compatible with your operating system and click the "Download" button. Next, go to your web browser's "Downloaded" folder and copy the downloaded security.dll file.

Go to the folder where the file should be located and paste the downloaded file. Below is the list of security.dll file example directory paths.

Windows 10: C:\Windows\System32\
Windows 8.1: C:\Windows\System32\
Windows 8: 1: C:\Windows\System32\
Windows 7: C:\Windows\System32\
Windows 7: C:\Windows\System32\
Windows Vista: ---
Windows Vista: ---
Windows XP: ---

If the steps did not solve your security.dll file problem, you should consult a professional. A probability exists that the error(s) might be device-related and therefore should be resolved at the hardware level. A fresh operating system installation might be necessary – a faulty system installation process can result in data loss.

File versions list

Filename security.dll

System Windows 10

File size 4608 bytes

Date 2017-03-18

Download

File details
	MD5	be3cd92468bc820e229952c8dbe59729
	SHA1	72410e91aa11ba9ba692471f536e30a3d7def83c
	SHA256	59620424f1b568c537fa652a4b343b90f3a17aa85feb9415bddd2a7a747d41b8
	CRC32	e3bc9a3c
	Example file location	C:\Windows\System32\

Filename security.dll

System Windows 8.1

File size 5120 bytes

Date 2013-08-22

Download

File details
	MD5	819dd1e488b32c71edba61618aa169c5
	SHA1	774e93a88a4d9ae60f2d984a6d25eaa70c40e8bc
	SHA256	9cc39da52865f0cc55d4d2b350d6d9e639f0f2e7652b30294be5b814d4559f0f
	CRC32	4614bc3d
	Example file location	C:\Windows\System32\

Filename security.dll

System Windows 8

File size 5120 bytes

Date 2012-07-26

Download

File details
	MD5	7d04542e843afa1a33d38c31d3fb5fec
	SHA1	2811b6c985a4c45717357cf636e103275268c0d1
	SHA256	1b37d88fd020c7f9ac172f4bf7747e97610aef2e471e215f931be4e4ee144a7a
	CRC32	b1a92c77
	Example file location	1: C:\Windows\System32\

Filename security.dll

System Windows 7

File size 5120 bytes

Date 2009-07-14

Download

File details
	MD5	0d893f8d145d3b125b0226727c243a69
	SHA1	5f451c6244205c9eade713ac64dcad24c9f718c7
	SHA256	b344a18c5d5324a891b6e2121ec375afb9e83d4c59d64edd2e63854abec5d734
	CRC32	7bd8c5ee
	Example file location	C:\Windows\System32\

Filename security.dll

System Windows 7

File size 4608 bytes

Date -0001-11-30

Download

File details
	MD5	4f6e72b34ed3dc53dcc5e8708e60b61f
	SHA1	563e86e2d40ae509ccdbfbe7fdb753c31f13e6de
	SHA256	cb79f4ebce11eccfa167498f329f95d545f8d4e5cce4006b2a03b595733aebc2
	CRC32	59bdbd87
	Example file location	C:\Windows\System32\

Filename security.dll

System Windows Vista

File size 5120 bytes

Date -0001-11-30

Download

File details
	MD5	0a990afb9f2726323d61c8ecb8b70b17
	SHA1	1bc164f7ee92e9da9dbec6f95b3d05a2997df0a6
	SHA256	27bc7cbffb211de930c7fa97dcdca783cc74987edb5fc17d33c422e93ba91242
	CRC32	44cb32e1
	Example file location	---

Filename security.dll

System Windows Vista

File size 5632 bytes

Date 2006-11-02

Download

File details
	MD5	a483a370982bb46f7962c3190eb468fd
	SHA1	6d6c7d1fc0456da6cef779a95941db272e3a5cf4
	SHA256	acc26db33fce324eed5ca27d8e6ffb3cab5a73c05667db0838c0fd3fe3382223
	CRC32	100a0a92
	Example file location	---

Filename security.dll

System Windows XP

File size 5632 bytes

Date 2008-04-14

Download

File details
	MD5	8bcd11d38fce43a519246a91cc40de6a
	SHA1	e3182e52c7ae0c0c7930af30a0d4f7c056ce1868
	SHA256	981ee4b29fde6db58faa17bcca66db8143d693d91a00b7519f01abbae11aa580
	CRC32	8b2ba73d
	Example file location	---