Abstract: A system and method include receiving, by a migration tool of a virtual computing system, an indication for hypervisor conversion for converting a hypervisor on nodes in a cluster of the virtual computing system from a first hypervisor type to a second hypervisor type. The system and method also include converting, one at a time, the hypervisor on each of the nodes from the first hypervisor type to the second hypervisor type in response to the indication, including converting virtual machines on each of the nodes for running on the second hypervisor type. The hypervisor and the virtual machines are converted on one node before starting conversion of the hypervisor and the virtual machines on another node, and the virtual machines of the one node are migrated from the one node before conversion and the migrated virtual machines remain operational during conversion of the hypervisor on the one node.