Fixing WSUS – error 507: “Update services failed its initialization and stopped”

I had a Windows Server Update Services installation that after a reboot, failed to start the WSUS service with a fairly generic error message. Clients issued an “unable to check for updates” message with an 8-character hex error code, differing depending on the client OS.

To fix it, I followed the directions in this source article on vcloudnine.deWSUS on Windows 2012 (R2) and KB3159706 – WSUS console fails to connect

  • Run elevated Command Prompt and issue the following command:"C:\Program Files\Update Services\Tools\wsusutil.exe" postinstall /servicing
  • Ensure the “HTTP Activation” feature is installed, using Server Manager > Add Roles and Features > Features > .NET Framework 4.5 Features. In my case, it was already installed.
  • Restart “WSUS Service” from services.msc

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