From bleepingcomputer.com
Microsoft’s WinGet package manager is currently having problems installing or upgrading packages due to the Azure Content Delivery Network (CDN) returning a 0-byte database file.
The Windows Package Manager (WinGet) was released in May 2020 and allows users to install applications directly from the command line.
Starting over the weekend, Windows users began reporting that when they attempted to install or upgrade apps using WinGet, they would receive different errors depending on the operation.