What is the Extensible Authentication Protocol (EapHost) service?

An explanation of the Extensible Authentication Protocol (EFS) service in Windows 7.

What does the Extensible Authentication Protocol (EapHost) service do?

The Extensible Authentication Protocol (EapHost) service is responsible for network authentication. Any time a network requires a password (wireless, VPN, or NAP networks for example) the EapHost service is responsible for letting you in.

Extensible Authentication Protocol (EapHost) service details

  • Service name: EapHost
  • Description: The Extensible Authentication Protocol (EAP) service provides network authentication in such scenarios as 802.1x wired and wireless, VPN, and Network Access Protection (NAP). EAP also provides application programming interfaces (APIs) that are used by network access clients, including wireless and VPN clients, during the authentication process. If you disable this service, this computer is prevented from accessing networks that require EAP authentication.
  • Path to executable: C:\windows\System32\svchost.exe -k netsvcs
  • Startup type: Manual

Does my computer need the Extensible Authentication Protocol (EapHost) service?

Your computer doesn’t need the EapHost service to run, but if you have encrypted files on your computer you won’t be able to access them if this service is disabled.

Should I disable the Extensible Authentication Protocol (EapHost) service?

First off, I have to say that it’s best to leave service optimization up to Microsoft. With that said; I would leave the EapHost service alone.

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