AuthExt.dll download

Developer:
Microsoft
Description:
Authentication Extensions
Rating:

You are running: unknown OS

DLL file found in our DLL database.

The update date of the dll database: 24 Nov 2024

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Click "Download Now" to get the PC tool that comes with the AuthExt.dll. The utility will automatically determine missing dlls and offer to install them automatically. Being an easy-to-use utility, it is is a great alternative to manual installation, which has been recognized by many computer experts and computer magazines. Limitations: trial version offers an unlimited number of scans, backup, restore of your windows registry for FREE. Full version must be purchased. It supports such operating systems as Windows 10, Windows 8 / 8.1, Windows 7 and Windows Vista (64/32 bit).
File Size: 3.04 MB, Download time: < 1 min. on DSL/ADSL/Cable

Since you decided to visit this page, chances are you’re either looking for authext.dll file, or a way to fix the “authext.dll is missing” error. Look through the information below, which explains how to resolve your issue. On this page, you can download the authext.dll file as well.

What is AuthExt.dll?

AuthExt.dll a DLL (Dynamic Link Library) file, developed by Microsoft, which is referred to essential system files of the Windows OS. It usually contains a set of procedures and driver functions, which may be applied by Windows.

What is AuthExt.dll used for?

AuthExt.dll file, also known as Authentication Extensions, is commonly associated with Microsoft® Windows® Operating System. It is an essential component, which ensures that Windows programs operate properly. Thus, if the authext.dll file is missing, it may negatively affect the work of the associated software.

What is AuthExt.dll is missing error mean?

There are multiple reasons that may cause authext.dll errors. These include Windows registry issues, malicious software, faulty applications, etc.

Error messages related to the authext.dll file can also indicate that the file has been incorrectly installed, corrupted or removed.

Other common authext.dll errors include:

  • “authext.dll is missing”
  • “authext.dll error loading”
  • “authext.dll crash”
  • “authext.dll was not found”
  • “authext.dll could not be located”
  • “authext.dll Access Violation”
  • “The procedure entry point authext.dll error”
  • “Cannot find authext.dll”
  • “Cannot register authext.dll”
authext.dll - System Error The program can`t start because authext.dll is missing from your computer. Try reinstalling the program to fix problem.

How to fix AuthExt.dll missing error?

If the “authext.dll is missing” error occurs, you may use one of the methods below – manual or automatic – to solve the problem. The manual method assumes that you download the authext.dll file and put it inside the game/application installation folder, while the second method is much easier as it allows you to automatically fix the error with minimum effort.

Method 1: Download AuthExt.dll

Search through available versions of authext.dll from the list below, select the correct file and press the “Download” link. If you cannot decide which version to choose, read the article below or use the automatic method to resolve the issue

AuthExt.dll, 9 available versions

Bits & Version File size Checksums
64bit 6.3.9600.17415 36.0 KB
MD5
MD5 1ea280d1349a2b7990c32b8758e232ca
SHA1
SHA1 3f3b1a34a33739fb5dc74e0c62838e32d6e208d0
32bit 6.3.9600.17415 30.5 KB
MD5
MD5 9e2d86747b843e887529655ffe40b900
SHA1
SHA1 5d9e6fae1a68a0c224578a91083e276d75b43173
64bit 6.3.9600.16384 32.5 KB
MD5
MD5 1547e5b7d2ef477d422ebe0fe58508cc
SHA1
SHA1 c65e6c699ecba30716215b96da469ceaaff58ef7
32bit 6.3.9600.16384 28.0 KB
MD5
MD5 977b8f3d62b9d827e3fa475a761ac9c7
SHA1
SHA1 fb0f208da1bc8397f380ef5e2a7c82a493d4cd26
32bit 6.2.9200.16384 26.5 KB
MD5
MD5 ef7701010381d1468703544ff5b48992
SHA1
SHA1 f591c507ebb168092349145dee02c8e4c1d6bf7f
32bit 10.0.14393.0 87.0 KB
MD5
MD5 0ecc1a1cc4c3f1ffa02e224b07349e44
SHA1
SHA1 86b12ff733e77367b4ee85e7f6ecea1cf818bb55
64bit 10.0.14393.0 99.0 KB
MD5
MD5 de23a9c6c89b5acbf745676b3dbe6f6f
SHA1
SHA1 6077aa7395fcf243c0daa1d6f53486303771ab43
64bit 10.0.10586.0 93.0 KB
MD5
MD5 1b72358ca3ab7ddde0c4d5bcf935481a
SHA1
SHA1 cf95162e7456969b128a91ec4f5c24a7e24bfc19
32bit 10.0.10586.0 78.5 KB
MD5
MD5 b2ee86c4ec3a167991001a2c56e65af5
SHA1
SHA1 db79b7db036ab5485f963d1b7826c16afe1907cb

How to choose the correct version of AuthExt.dll?

First, look through descriptions in the table above and select the proper file for your program. Pay attention to whether it’s a 64-, or 32-bit file, as well as the language it uses. For 64-bit programs, use 64-bit files if they are listed above.

It’s best to choose those dll files which language corresponds to the language of your program, if possible. We also recommend downloading the latest versions of dll files for an up-to-date functionality.

Where to place the AuthExt.dll file?

To repair the “authext.dll is missing” error, put the file inside the application/game installation folder. Alternatively, you can place the authext.dll file within the Windows system directory.

How to register AuthExt.dll?

If putting the missing authext.dll file into the proper directory doesn’t solve the problem, you’ll have to register it. To do so, copy your DLL file to the C:\Windows\System32 folder, and open a command prompt with admin rights. There, type “regsvr32 authext.dll” and press Enter.

Method 2: Fix the missing AuthExt.dll error automatically

With WikiDll Fixer you can automatically repair authext.dll errors. The utility will not only download the correct version of authext.dll for absolutely free and suggest the right directory to install it but also resolve other issues related to the authext.dll file.
  • Step 1: Click the “Download App. ” button to get an automatic tool, provided by WikiDll.
  • Step 2: Install the utility by following simple installation instructions.
  • Step 3: Launch the program to fix your authext.dll errors and other issues.
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4.365.534 downloads

See more information about Outbyte and unistall instrustions. Please review Outbyte EULA and Privacy policy

File Size: 3.04 MB, Download time: < 1 min. on DSL/ADSL/Cable

This Tool is Compatible With: windows-versions

Limitations: trial version offers an unlimited number of scans, backup, restore of your windows registry for FREE. Full version must be purchased.

Method 3: Update drivers to restore missing .dll files

Driver updates for the Windows operating system, as well as for network adapters, monitors, printers, etc., can be independently downloaded and installed from the Windows Update Center or by using specialized utilities.

OPTION 1 - Automatic Device Drivers Update

Outbyte Driver Updater automatically updates drivers on Windows. Routine driver updates are now a thing of the past!
  • Step 1: Download the Outbyte Driver Updater
  • Step 2: Install the application
  • Step 3: Launch the app
  • Step 4: Driver Updater will scan your system for outdated and missing drivers
  • Step 5: Click Update to automatically update all drivers

OPTION 2 - Manually Update Device Drivers

  • Step 1: Go to Taskbar' search box - write Device Manager - choose Device Manager
  • Step 2: Select a category to look at the devices' names - make right-click the one that needs to be updated
  • Step 3: Choose Search automatically for updated driver software
  • Step 4: Look at Update Driver, and select it
  • Step 5: Windows might not be able to find the new driver. In this case, the user can see the driver on the manufacturer's website, where all the necessary instructions are available

Method 4: Scan your PC for malware to fix authext.dll error

Sometimes authext.dll error can happen because of malware on your computer. The malicious software can intentionally corrupt DLL files in order to substitute them with its own malicious files. Therefore, your number one priority should be to scan your computer for malware and eliminate it as soon as possible.

OPTION 1 - Windows Defender

The new version of Windows 10 has a built-in application called "Windows Defender", which allows you to check your computer for viruses and remove malware, which is difficult to remove in a running operating system. In order to use the Windows Defender Offline scan, go to the settings (Start - Gear icon or Win + I key), select "Update and Security" and go to the "Windows Defender" section.
How to use Windows Defender Offline Scan
  • Step 1: Press Win key or click on Start and click on Gear icon. Alternatively press Win + I key combination.
  • Step 2: Select Update and Security option and go to Windows Defender section.
  • Step 3: At the bottom of the defender settings there is the checkbox " Windows Defender Offline scan". To start it, click "Scan Now". Note that you have to save all unsaved data before rebooting your PC.

After clicking “Scan Now” burton, the computer will reboot and automatically start searching viruses and malware. Upon completion of the scan, the computer will restart, and in the notifications, you will see a report on the completed scan.

OPTION 2 - Outbyte Antivirus

Outbyte products are one of the most popular and effective to fight malware and unwanted programs, and they will come in handy even when you have a high-quality third-party antivirus installed. Scanning in the new version of Malwarebytes can be performed in real time and manually. To initiate manual scan please follow the steps below:
  • Step 1: Launch the Outbyte program and click Scan Now button. Also, you can select Scan option on the left side of the program’s window and click Full Scan. The system will begin scanning and you will be able to see the scan results.
  • Step 2: Select items that you want to quarantine and press “Quarantine Selected” button. When quarantined, you may be prompted to reboot the computer.
  • Step 3: After the program has been restarted, you can delete all quarantined objects by going to the appropriate section of the program or restore some of them if it turned out that after quarantining something from your software began to work incorrectly.

Method 5: Fix AuthExt.dll missing error with System File Checker (SFC)

Many users are familiar with the sfc / scannow system file integrity check command, which automatically checks and fixes protected Windows system files. To execute this command, you have to run command prompt as administrator.
  • Step 1: Start the command line as an administrator in Windows by pressing Win key on your keyboard and typing "Command Prompt" in the search field, then - right-click on the result and select Run as administrator. Alternatively, you can press Win + X key combination which will open the menu where you can select Command Prompt (Admin).
  • Step 2: Type sfc / scannow while in Command Prompt and hit Enter.

After entering the command, a system check will begin. It will take a while, so please be patient. Once operation is complete you will get the message “Windows Resource Protection found corrupt files and successfully repaired them.” or “Windows Resource Protection found corrupt files but was unable to fix some of them”.

Keep in mind that System File Checker (SFC) cannot fix integrity errors for those system files that are currently being used by operating system. To fix these files you have to run SFC command through the command prompt in the Windows recovery environment. You can get into Windows Recovery Environment from the login screen, by clicking Shutdown, then holding down the Shift key while selecting Restart.

In Windows 10, you can press Win key, select Settings > Update & security > Recovery and under Advanced Startup, click Restart now. You can also boot from the installation disk or bootable USB flash drive with the Windows 10 distribution. On the installation screen select your preferred language and then select “System Restore”. After that, go to “Troubleshooting” > “Advanced Settings” > “Command Prompt”. Once in Command Prompt type the following command: sfc /scannow /offbootdir=C:\ /offwindir=C:\Windows where C is the partition with the installed operating system, and C: \ Windows is the path to the Windows 10 folder.

This operation will take a while and it is important to wait until it is complete. When finished, close the command prompt and restart the computer as usual.

Method 6: Fix corrupted AuthExt.dll file by performing System Restore

System Restore is very useful when you want to fix authext.dll error. Using the "System Restore" function, you can choose restore Windows to the date when the authext.dll file was not damaged. Thus, restoring Windows to an earlier date cancels changes made to system files. Please follow the steps below to roll back Windows using System Restore and get rid of authext.dll error.
  • Step 1: Press the Win + R keys combination to launch Run dialog.
  • Step 2: Type rstrui in the Run text box and click OK or hit Enter. It will open the system recovery utility.
  • Step 3: The “System Restore” window may include the “Choose a different restore point” option. If so, select this option and click Next. Check the “Show more restore points” checkbox to see a complete list of dates.
  • Step 4: Select a date to restore Windows 10. Keep in mind that you need to select a recovery point that will restore Windows to the date when the authext.dll error message did not appear.
  • Step 5: Click the "Next" button and then click "Finish" to confirm your restore point.

At this point, your computer will reboot normally and boot up with restored version of Windows, and authext.dll error should be resolved.

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