Windows Server Feature Enables Fail: One or several parent features are disabled so current feature can not be enabled.

Error is: One or several parent features are disabled so current feature can not be enabled.

Try this from an elevated CMD:

SC config wuauserv start= auto
SC config bits start= auto
SC config cryptsvc start= auto
SC config trustedinstaller start= auto

Then restart the server.

From an elevated powershell session:

Get-WindowsFeature Net-Framework-Features | Remove-WindowsFeature

Restart-Computer (If the above succeeds)

Then try to use server manager to reinstall .NET 3.5 features

This issue should be resolved after this.