If you previously owned a license but cannot find the key, you have a few options:
Since ESXi 5.5 predates the modern HTML5 web client, you will primarily use the to manage your license. Step-by-Step Instructions: Launch the vSphere Client and log into your ESXi host. Select the Host in the inventory sidebar on the left. Click on the Configuration tab in the main window. Under the Software section, click on Licensed Features . Click Edit (located in the top right corner). Select Assign a new license key to this host . license key vmware esxi 5.5
I can provide specific or troubleshooting steps based on your setup. If you previously owned a license but cannot
While ESXi 5.5 removed the physical RAM limit (which was 32GB in version 5.0), it still limits the number of virtual CPUs (vCPUs) per VM. 🛠️ How to Add a License Key to ESXi 5.5 Click on the Configuration tab in the main window