Safe
Free

AuthExt.dll

x64 Windows System
Verified

This is a Core Windows System File

AuthExt.dll is a critical Windows component. If it's missing or corrupted, you should repair Windows rather than replace the file manually.

Recommended: Run System File Checker

sfc /scannow

Open Command Prompt as Administrator and run this command.

Why You Shouldn't Just Download the DLL

  • DLLs depend on other DLLs - copying one file won't fix the chain
  • Runtime packages register components in Windows correctly
  • Version mismatches can cause more problems
  • The official installer handles all of this automatically

Compatibility

Windows Server 2022 Windows Server 2019 Windows Server 2016

File Details

Name
AuthExt.dll
Size
76 KB
Version
10.0.20348
Architecture
x64
Source
Windows system
Part of
Windows System

Hash Verification

d8bafc5ca3f258f04090be3bb45e9f290620124b00c6d897ca2bd257f579123f
292756d3421c19248dc111d60877fef3
ADVANCED

Manual DLL Download

Only if installer doesn't work

This is a last resort. Try the official installer first.
Download ZIP

76 KB | x64

2,751 downloads

Manual Installation Steps
  1. 1 Extract the ZIP file
  2. 2 Copy to C:/Windows/System32/
  3. 3 If needed: regsvr32 AuthExt.dll

Official Microsoft source

Malware scanned

SHA-256 verified

Other Versions

AuthExt.dll
x86