PowerDVD seemed to have installed OK, and I was able to try it by viewing a DVD from the ext drive. When I rebooted (normaly) the system started OK and I was able to connect all the cables and devices then resume normal operation. Even then the power light would not go off until I forced a power down (held the power button down for >5 sec). Nothing responded until I gave it a Microsoft Salute (ctrl-alt-del) (at least the inbuilt keyboard was still working), arrow-keyed to the shut-down icon, and shut the system down. I pulled out all the cables and fiddled with the inbuilt keyboard and touch pad for a few minutes in intense anxiety, but the installation appeared to have hung at 96%.

The laptop screen was still working, although the mouse pointer had disappeared. At about 96% I lost my 2nd screen and all USB communication (DVD player, mouse, keyboard), and the touch pad of the laptop. I installed PowerDVD 20 Essential, downloaded as part of installing a software disk that came with an LG portable USB DVD drive. System: new HP OMEN-17-cb0061T (Intel i7-9750H, chipset Intel HM370, video NVIDIA GeForce RTX 2070, 2 x SSD M.2, 1 x 16 GB ram, no HDD). Installing PowerDVD 20 Essential and PowerDVD 20 Ultra

Cyberlink power dvd 20 ultra