In Windows 8 and Windows Server 2012, the. Net Framework 3.5 is an on-demand feature. Depending on the functionality of the metadata is contained in Windows 8 and Windows Server 2012. However, binaries and other files associated with the feature are not included. When you enable this feature, Windows will attempt to download the missing information to install the Windows update for that feature, and you may receive an error.
The network configuration and the installation of the update by the computer in such a configuration environment may affect this process, so you may encounter errors when you first install this feature.
This error code may occur if you specify a different installation source and if one of the following conditions is true:
· The location specified by the path does not contain the files required to install the feature.
· The user attempting to install this feature does not have at least read access, as well as files.
· The setup file set is corrupted, incomplete, or invalid for the version of Windows that you are running.
To resolve this issue, make sure that the full path to the source is correct (X:sourcessxs), and that you have at least read access. To do this, try to access the source directly from the affected computer. Verify that the installation source contains a valid and complete set of files. If the problem persists, try using a different installation source.