Safe
Free

aadauthhelper.dll

x64 Windows System
Verified

This is a Core Windows System File

aadauthhelper.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
aadauthhelper.dll
Size
464 KB
Version
10.0.20348
Architecture
x64
Source
Windows system
Part of
Windows System

Hash Verification

eb8e5c8dd0ee55f36874e9cd441be1a36ce65699b5f86b8b207e2426cc1e014a
bba87cefe7be300f5e457e910948c0d1
ADVANCED

Manual DLL Download

Only if installer doesn't work

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

464 KB | x64

2,980 downloads

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

Official Microsoft source

Malware scanned

SHA-256 verified