WinFix: .Net Framework 4.5.1 – Install Error 0xC8000222 on Windows 7

Installing .Net Framework 4.5.1 on Windows 7 causes error 0xC8000222.

This error code may be caused by the corruption in Windows Updates datastore.

.Net Framework 4.5.1 Supported OS:

  • Windows Vista / Windows Server 2008 (SP2)
  • Windows 7 / Windows Server 2008 R2 (SP1)
  • Windows 8 / Windows Server 2012

.Net Framework Downloads:


  1. Open services, stop BITS (Background Intelligent Transfer Service) and Windows Update services
  2. Open windows explorer and navigate to C:\Windows\SoftwareDistribution
  3. You can either rename C:\Windows\SoftwareDistribution to C:\Windows\SoftwareDistribution.OLD or you can delete all files and folder under C:\Windows\SoftwareDistribution
  4. Go back to services, just turn on Windows Update services
  5. Run .Net Framework installation again


  1. Although NF 4.5.1 requires W7 SP1, it can still be installed in W7 RTM

.Net Framework 4.5.1 on Windows 7 RTM Log .Net Framework 4.5.1 on Windows 7 RTM

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