Download authui.dll

Download authui.dll
Download authui.dll
  • Company Name: Microsoft Corporation
  • Product Name: Microsoft® Windows® Operating System
  • File Created Time: 13.11.2013 18:00:28
  • MD5 hash: ee7cb55f77465cdac4c80f587ff7c278
  • SHA1 hash: e8876ae0f79b17603dbb133d2c25732baf0bc73b
  • File Version: 6.1.7601.18276 (win7sp1_gdr.131003-1533)
  • File Description: Windows Authentication UI
  • System Entries: 18 Entries
  • User Entries: 0 Entries

System errors authui.dll:

Error authui.dll
  • Authui.dll not found
  • The file authui.dll is missing
  • Access Violation
  • Can not register authui.dll
  • Can not find C:/Windows/System32/authui.dll
  • Can not start program. A required component is missing. Please install program again
  • This application failed to start

How to fix authui.dll error:

Copy it to the installation directory of the program/application that is requesting authui.dll.

If that doesn't work, try copy dll file to your system directory:

  • 95/98/Me - C:\Windows\System
  • NT/2000 - C:\WINNT\System32
  • XP, Vista, 7, 8 - C:\Windows\System32
  • 64-bit - C:\Windows\SysWOW64\

Reboot your computer.


  • Open Windows Start menu and select "Run...".
  • Type CMD and press Enter
  • Type regsvr32 authui.dll and press Enter.