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Fix .NET 3.5 Requirement Windows Setup on Chromecast

Authored by: Support.com Tech Pro Team

1. Introduction

Setting up or using your Chromecast from Windows 7, 8, and 8.1 is easy, but does require enabling a few extra features of Windows.

This guide will walk you through installing the no cost .NET 3.5 library on Windows 7 or Windows 8.

Google Chromecast.

2. Install .NET 3.5.x

  1. Select Start > Control Panel.
Windows 7 Start Menu with start menu and Control Panel highlighted.
  1. Select Programs.
Control Panel with Programs highlighted.
  1. Select Programs and Features.
Programs with Programs and Features highlighted.
  1. In the top-left corner, select Turn Windows features on or off.
Programs and Features inset with Turn Windows features on or off highlighted.
  1. Place a dot next to Microsoft .NET Framework 3.5.1, then select OK.
Windows Features dialog with .NET Framework and OK highlighted.
  1. Windows will install this feature for you.
Windows feature install dialog.

You don't need to reboot.

3. Install .NET 3.5.x

  1. Using your right mouse button, Right Click on the Start Menu, then select Control Panel.
Windows 8 Start Menu right click menu with Control Panel highlighted.
  1. Select Programs.
Control Panel with Programs highlighted.
  1. Select Programs and Features.
Programs with Programs and Features highlighted.
  1. In the top-left corner, select Turn Windows features on or off.
Programs and Features inset with Turn Windows features on or off highlighted.
  1. Place a dot next to .NET Framework 3.5, then select OK.
Windows Features dialog with .NET Framework 3.5 and OK button highlighted.
  1. When prompted to download the updates, select Download files from Windows Update.
Windows Feature install dialog with Download from Windows Update highlighted.
  1. Windows will install this feature for you.
Windows Features install dialog.

You don't need to reboot.

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