So my paint.net has been fine with no issues whatsoever, until sometime between late December of 2021 and early January of 2022. I opened it up, and it informed me that I needed to update it (I used the free version) so I decided to update it on the spot. However, something happened, and it failed to download. Ever since, whenever I try to redownload paint.net's free version, I always get error 1603. I've followed several tutorials, even another thread someone made on this exact error, but none of them have seemed to help. Any help would be appreciated!