Ok, I already have Umbra. I go to talk to the shrine and the journal entry pops up, cutting the shrine's speech off; "I have retrieved the sword.." and afterwards, the game semi freezes. I can look around, swap to third person, etc. but I can't open my menu or move, or target the shrine or other NPCs or anything. What can I do to fix this?

Because I'd rather get all Daedric artifacts, then onlt give up the one/s that don't provide any use, entertainment or lulz.

You can get around the bug (without the patch) simply by obtaining the sword before ever speaking to the shrine. If you happen to walk up to ol' stony boy for the first time with the sword already in possession, you can complete the quest (be it by surrendering or keeping the sword) without fear of crashing the game.

The real trick is, by doing it this manner, you have to "murder" Umbra.

Whether by keeping the sword or trading it for the mask, you have to finish the quest if you ever hope to obtain the Oghma Infinium.

Dark Spark Fun Fact: the messenger who tells you where to find Hermaeus Mora's shrine will not leave his spot until you talk to the Daedric Prince. Which means, if he consulted you in the safety of your own home, he will stay there for the longest time if you dally.

I have not discovered what kind of sound he'll make if you chop into his back with a War Axe and attempt to pull his lungs out through the wounds. Yet.