Because you are downloading software from smaller, third-party cloud drives, safety is a valid concern.
Once you have located the "Kuiyn T6 Setup.exe" or similar installation file, follow these steps: kuiyn t6 mouse software free
While there is no "official" dedicated Kuiyn software suite like Razer Synapse or Logitech G Hub, you can still manage the device using standard methods: third-party cloud drives