打开powershell 右键选择用管理员身份运行:
粘贴如下代码:
Set-ItemProperty -Path ‘HKLM:\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU’ -Name UseWUServer -Value 0
Restart-Service -Name wuauserv
Install-WindowsFeature Net-Framework-Core
Set-ItemProperty -Path ‘HKLM:\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU’ -Name UseWUServer -Value 1
Restart-Service -Name wuauserv
将连接外网安装netframe3.5