VirtualBox- error: extension pack directory: VERR_ALREADY_EXISTS

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Issue


VirtualBox offers an update of its expansion pack, and when you download the installation process, an error message (example below) is displayed:


Failed to install the extension


C:/Users/aquarelle/Downloads/Oracle_VM_VirtualBox_Extension_Pack-x.x.x-xxxxx.vbox-extpack. Échec de l'installation de l'extension C:/Users/aquarelle/Downloads/Oracle_VM_VirtualBox_Extension_Pack-y.y.y-yyyyy.vbox-extpack.

The installer failed with exit code 1: VBoxExtPackHelperApp.exe: error: Failed to rename the extension pack directory: VERR_ALREADY_EXISTS


rcExit=1.
Code d'erreur : E_FAIL (0x80004005)
Composant : ExtPackManager
Interface : IExtPackManager {3295e6ce-b051-47b2-9514-2c588bfe7554}

Solution


To handle problem and install the update.
  • First, close all running instances of VirtualBox.
  • Then run a command prompt (Start> Programs> Accessories> Command Prompt)


Enter the following command:



Then, start VirtualBox and update the expansion pack.
Jean-François Pillou

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