For the most part Roblox works pretty well, but sometimes you get errors like ‘Failed to Download or Apply Critical Settings.’ Figuring out the problem is a bit of a head-scratcher. Regardless ...

High Ping can occur due to many reasons. Check your internet connection and cancel all downloads to fix the High Ping issue in Roblox.

If Roblox is not downloading or installing on your Windows 11/10 PC, restart your PC and if that doesn't help, use the fixes discussed here.