Cannot install: Installer claims not enough space, screenshot attached

Hello, I’ve been waiting for MSFS to download for over 10 hours now, I finally got down to 16GB left, and then it crashed and I had to reopen it. Once I got back to the download, this greeted me:

As you can see, it clearly show that I have 54 GB of available space, and the download only has 16 GB left, yet it still says I don’t have enough space, which makes no sense. I tried deleting a few things and clearing up more space, with the same thing being shown.

Any idea on how to fix this? Or do I have to spend another 10 hours redownloading the entire thing?