I can't imagine how often this topic gets posted as I've seen a multitude of threads about the same topic. I'm at the end of my straw with this issue, I've been sat here trying different fixes for the past 4 hours and nothing is working. I don't know what else to do at this point other than to make a post.
So the error appears after fully downloading and during the phase where it says "installing sea of thieves". It then changes to "Error". I've tried all the fixes I can find online other than reinstalling windows as there must be an easier way. I have changed permissions to folders, cleared the windows store cache - both manually and with wsreset. I have tried everything I can find and all I can think of now is to make a post and hope someone has a miracle solution.