TMG (Threat Management Gateway) and Windows Update Error 0x80072f8f
You’ve just installed Microsoft Forefront Threat Management Gateway (TMG) and then head off to install Windows Updates to make sure everything is up to date, when you see the nasty red X and the indecipherable error code: 0x80072f8f.
Never fear, this is simply an indication that TMG, being a firewall, is blocking the Windows Update traffic. To resolve, you just need to tell Windows to use TMG as a proxy. From an elevated command prompt, run:
netsh winhttp set proxy localhost:8080
And then run Windows Update again.
Shane Skriletz , PEI