Installing became really slow

I’m installing UE4, it was going pretty smoothly, its now 11 GB of 11GB, which doesnt make sense, but now its 84% and at 82 it became super slow, right after it was complete with the 11GB, I had to pause and resume over and over and it eventually went to the next percentage, but it now doesnt seem to do anything, I have been waiting a long time, and nothing so far, Im on windows 10 and have 12GB of ram, and 740gb of storage, so, yeah, idk… Any help would be nice.