Hi,
It looks like "UWS HiPriv Services" is still registered in the system, preventing installation. Please run Regedit and go to the "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services", and delete "UWS HiPriv Services" and "UWS LoPriv Services" nodes if they are there. After that please reboot your system and try installation again.
Please let us know if this has helped.
Best regards,
UltiDev Team.
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