

To install it just close down any running Virtual Box instances and double-click on extension pack file and the tool will launch and install it for you, upgrading any earlier version of extension pack you might have. The packs have a "vbox-extpack" file extension that's automatically handled by VirtualBox. Using the extension pack doesn't require a separate installation. Once again, the main application installed fine, but the extension pack did not.VirtualBox Extension Pack was introduced in Virtualbox as a new way to extend the functionality of the VirtualBox base package.

I tried uninstalling VirtualBox and reinstalling from a newly-downloaded installer from the Oracle website. VBoxManage.exe: error: Context: "enum RTEXITCODE _cdecl handleExtPack(struct HandlerArg *)" at line 1158 of file VBoxManageMisc.cpp VBoxManage.exe: error: Details: code E_FAIL (0x80004005), component ExtPackManagerWrap, interface IExtPackManager VBoxManage.exe: error: The installer failed with exit code 1: VBo圎xtPackHelperApp.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-14032' -> 'C:\Program Files\Oracle\VirtualBox\ExtensionPacks\Oracle_VM_VirtualBox_Extension_Pack')

VBoxManage.exe: error: Failed to install "C:\users\j1008060\Downloads\Oracle_VM_VirtualBox_Extension_Pack-5.1.12-112440.vbox-extpack" I have been unable to install the Extension Pack using either the GUI or CLI interfaces, even in Safe Mode, I get the following messages:Ĭ:\Users\J1008060>cd "\Program Files\Oracle\VirtualBox"Ĭ:\Program Files\Oracle\VirtualBox>vboxmanage extpack install C:\users\j1008060\Downloads\Oracle_VM_VirtualBox_Extension_Pack-5.1.12-112440.vbox-extpack Just upgraded VirtualBox to version 5.1.12 on 64-bit Windows 10 Anniversary Edition, and tried to install the accompanying Extension Pack.
