Read how at https://www.howtogeek.com/214868/how-to-mirror-your-windows-or-android-devices-screen-on-your-roku/ and be sure to note the thing about VMs.
Can Windows 8.1 broadcast the screen to a Roku Smart TV? I tried to use the Bluetooth find devices in settings but it didn't find the TV. The "connect" feature in Windows 10 works fine, but I don't think that's in Windows 8.1. Please help.

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