The installer failed with exit code 1: VBoxExtPackHelperApp.exe: error: Failed to rename the temporary directory to the final one: VERR_ACCESS_DENIED ('C:\Program Files\Oracle\VirtualBox/ExtensionPacks/Oracle_VM_VirtualBox_Extension_Pack-_-inst-7776' -> 'C:\Program Files\Oracle\VirtualBox/ExtensionPacks/Oracle_VM_VirtualBox_Extension_Pack')
rcExit=1.
错误代码

返回 代码: E_FAIL (0x80004005)
组件: ExtPackManagerWrap
界面: IExtPackManager {edba9d10-45d8-b440-1712-46ac0c9bc4c5}

我的win10 14393.1066也出现同样的问题，我是进入安全模式后安装成功的你可以试试