in this post i will document for you how to change the NIC adapter type for a windows guest VM from E1000 to vmxnet3 without removing the old adapter with PowerCLI
before you start, it´s recommended to take a snapshot of the virtual machine
check if you have the last version installed of VMWare tools if not please upgrade.
Also upgrade your VM compatibility to match the version of the ESX host.
start PowerCli with administrative right and connect to your vCenter
once connected give the following commands
#confirm with Y
get-VM “your VM Name”
get-VM “your VM Name” |get-Networkadapter
#check if the actual installed adapter is e1000
#now set the new adapter type
get-VM “your VM Name” |get-Networkadapter |Set-Networkadapter -type vmxnet3
That´s it 😉