Use iMessage on a Mac and access it remotely from Windows with remote desktop software
Use a cloud-based Mac service to run Messages on a virtual Mac from Windows
Use Phone Link only for SMS and RCS on supported Android phones, not Apple Messages
Use the Messages app on an iPhone or iPad instead of Windows
Use a third-party messaging app that syncs across Windows and Apple devices
Use iCloud services for Apple account syncing, but not for full iMessage access on Windows
Use a browser-based remote access tool to control a Mac that is signed in to Messages