The 'HP Spectre' seems to be a laptop.

The new Intel's mobile integrated graphics (www.techpowerup.com/gpu-specs/?generation=Iris+Xe+Graphics-M&sort=generation) support OpenGL, there shouldn't be any issues with displaying Poser's UI. Bear in mind it does not support nVIDIA's CUDA.

Check your Poser's 'Display/Preview Drawing' setup. It can be toggled by 'Alt-Ctrl-O / Alt-Ctr-S'.

You may also uncheck 'Edit/General Preferences/Library/Indexing/Refresh on Launch' box.

Have some patience before the hitting power button, even when working under Win 10.