If you have installed PSpice for TI on less than 3 computers, you can install on an additional machine without issue. If you are already using your license on 3 machines and need to migrate your license from an existing machine to a new one, please click here to open a new thread on the PSpice for TI E2E forum.
The support engineer will ask for your email address. Please also be ready to share the output of Windows command "Get-NetAdapter -IncludeHidden" (ran in Windows power shell) on the machine(s) you intend to continue using (no we don't need this from the new machine you haven't installed PSpice for TI on).