Oh there's a third thing you can check: Windows is one of the worst thing when it comes to indexing the files, in particular: its search engine seems to be programmed with 100% inefficiency in mind.
I've stripped down the folders list it handles down to a minimum: the Windows folders, any Program Files folders too, plus a few other places, but I've strictly prohibited () to touch any Runtime folder, as well as the other resources for Poser. Poser's own search index is enough.
And when I need to search for any file, on any NTFS-based drive, Everything finds it as fast as you can type, free, from voidtools.com.

NTFS-based drives only? I don't now for the others but NTFS has a builtin catalog of filles, and Microsoft has never thought they could have based their own search engine on their own disk management. The only hope: their own artificial unintelligence may one day suggest them some smart ideas...

PhYl.

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Win10 on i7 8700K@4.3Ghz, 64Gb, Asus TUF Gaming RTX 4070 OC Edition, 2x 2Tb ssd + 6+4Tb hd  + 1x 8Tb hd + 1 10T NAS, Poser 11, Poser 12  and now Poser 13