Sounds like I’m not the only one with installation issues.
When installing HOPS if you get an error: “The ordinal 242 could not be found in the dynamic link library” try the following:
It’s not a HOPS problem as such but an Anaconda one.
In the Windows/system32 directory find a file: libiomp5md.dll
Try renaming it to libiomp5md.dll.bak
I believe it is a file installed by other software which conflicts with Anaconda (not HOPS). Sorted it for me. Hope it does for you too.