Hi Krystian T,
Thanks for sharing everything you’ve already tested. At this point, I’d like to confirm whether the USB receiver is the original one supplied with this keyboard or whether it was obtained separately.
Could you also share clear photos of the labels underneath both the keyboard and receiver? Please cover any serial numbers before posting. The number X891041-008 may be a part number rather than the complete model number, so the other label details may help identify the correct device.
Since a different keyboard driver was manually assigned, I suggest restoring the normal driver:
- Open Device Manager and locate the receiver under Keyboards or Human Interface Devices.
- Open Properties > Details and select Hardware Ids.
- Please share only the sections containing VID_#### and PID_####. Do not share the Device Instance Path, serial number, Container ID, computer name or any other long device-specific value.
- Return to the device entry, select Uninstall device, restart the PC and reconnect the receiver so Windows can reinstall its normal driver.
Afterward, kindly let me know what driver name appears and whether Device Manager shows a warning icon or error code.
If this is the original matching receiver and the issue remains after removing the manually assigned driver, it would point more strongly to a problem with the keyboard, receiver or the wireless connection between them.