I have installed esxi server on a machine and am using the client to access the server. It ask me for a key to activate the box within 55 days. I have the key. But I cannot find where in the client to add the key. I watched a you tube video and it says to click 'home' then 'licenceing' ; but the client does not have a licence icon to click. Can some tell me how to enter the key?
Select the host under Inventory, select the Configuration tab, Select Licensed Features, click Edit.
The video you watched was most likely about licensing with vCenter Server in place, which indeed has these icons on the "Home" page. For a standalone host, follow the steps mentioned by eeg3.
André