Install DotNet from commandPrompt

DISM /Online /Enable-Feature /FeatureName:NetFx3 /All /LimitAccess /Source:d:\sources\sxs

• d:\                  [the drive that the Windows Server ISO has mounted]
• /All                [enable all parent features of the specified feature]
• /LimitAccess [prevent DISM from contacting Windows Update/WSUS]
• /Source          [specify the location of the files that are needed to restore the feature]

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