According to, there are 4 resolutions for getting a 0x800F0906 error when trying to turn on .NET 3.5 in Programs and Features. Unfortunately, the first two involve blaming someone else, and the last one is for Windows Server 2012 and 2012 R2. Fortunately, the 3rd alternative works for fixing your Windows 8.1/10 .NET 3.5 installation error 0x800F0906: Continue reading “Windows 8.1/10 .NET 3.5 Installation Error 0x800F0906”