1. Download upgrade ESXI 8.0 update 3d from the following link
https://www.hpe.com/au/en/servers/hpe-esxi.html
2. Log in to vSphere Client
3. Import ISOs from “Lifecycle Manager”
4. Create a new baselines by the download update.
5. Give the baseline a name
6. Select the imported update patch and complete the baseline creation.
7. Following the following image and navigate to the baselines update page. Attached the now baselines to the host. Click on “Remediate”
8. Once the patching is completed, host will connect back to vCenter.