I don't recall installing cab files.
I downloaded the driver for the Bluetooth adapter on this page: https://www.tp-link.com/pt/support/download/ub500/#Driver. And then executed the "setup.exe" file.
But before installing the new adapter, I removed all devices connected via Bluetooth (the xm5, mouse, phone, webcam, etc) in Windows --> Settings --> Bluetooth & other devices.
And then used "Device Manager" just to disable the internal laptop's Bluetooth.

And then, plug the adapter in, install the above driver, and connect your devices to the new Bluetooth, including the xm5.
I know that's really frustrating situation, so I hope this helps.
Thank you