Remi does your i7 have an intel graphics? If so go into the bios & disable the igpu. You may need to disable it in the device manager.
There is a recent thread where another user igpu was causing the headset to disconnect all the time.
Igpu often cause issues for some headsets. Pimax is one of them.
*** Windows 10 multi display tip. If your going from multiple displays (might just be if displays are mismatched) to a single display.
Disable the displays your not using before shutting down the pc. W10 does autoscaling & doesn't reset scaling if you reboot with 1 monitor. Most programs are not affected; but games you might get corrupted graphics due to the scaling being off.