I tried all of the “fixes” I found on these forums and none of them worked. My agent would get stuck downloading halfway so I couldn’t download any blizzard games, no Overwatch or warzone. So I found Restoro and I bit the bullet and paid the one time fee of 28 dollars and it ran a scan on my PC, took about 10 minutes. Restarted my computer and tried re-downloading the Battle.net app and it worked instantly. It gets rid of any unnecessary files that may be slowing your PC down and repairs them with healthy files. I checked the reviews and everything that I saw gave nothing but good reviews. I dont know what files were bad on my computer but since then my PC has been running way faster and it got rid of whatever was stopping me from downloading the Battle.net app. I hope this helps some of you so we can get back to playing the games we love!