Aug 08, 2010 · I performed the upgrade from ESXi 4.1 on my desktop pc build to Vsphere 5. The upgrade was pretty easy in that I just downloaded the ISO file from vmWare, burned the CD and booted my ESXi 4.1 server from the CD. It gave me the option to upgrade, I selected it and followed the prompts. The whole upgrade probably took about 15 minutes which .... Click Here To Download VMware Player. 2. Oracle VM VirtualBox is another cool FREE virtual machine software if you're looking for an alternative to VMware Workstation. And it's an excellent choice for beginners. Great for lab testing and running from the desktop, VirtualBox installs on Windows, OS X, Solaris, and Linux. On the following screen, arrow key down to Hard drive C: and press Enter. This will bring up another dialog where you can choose the USB flash drive. When you choose the USB drive, it should bring up an ESXi standard boot menu and the standard installer should automatically be selected. Afterward, I started to install vCenter 6.7 on my ESXi. I entered the right settings (it's important to note that I don't have a DNS server. Instead of DNS, I entered the IP of my default Gateway. I have logged in the vCenter machine via SSH and I can ping the Gateway) Stage 1 of the installing vCenter finished successfully, but on the second.