How to Fix Windows Update Error Code 800B0100

While installing updates in Windows you may get the error code 800B0100. This relates to the Windows Update software not being able to connect to Microsofts servers.

Disable Your Firewall

  • Disable any custom firewall you may have
  • Try Updating again

Disable Windows Firewall

  • Open the Start Menu and Click Control Panel
start menu control panel
  • Click on the Windows Firewall icon
windows firewall shortcut
  • In the sidebar click Turn Firewall on or off
turn firewall on and off windows 7
  • Change both settings to off
windows firewall settings off
  • Save those settings and try again (Please turn the firewall back on afterwards!)

12 Comments (Newest on top)

  1. steve says:

    tried this, didnt work. any further updates pls send

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