Veeam Monitor fails while upgrading from version 4 to version 5 on a 64-bit operating system.
Upgrading Veeam Monitor from version 4 to version 5 is not supported for 64-bit operating systems.
A clean installation is required.
Please note that no historical performance will be lost, as Veeam Monitor retrieves all available historical performance data again when connecting to VMware vCenter server.