Microsoftnet Desktop Runtime 80 X64 2021 -
Understanding Microsoft.NET Desktop Runtime 8.0 (x64) – The 2021 Foundation of Modern Windows Apps
- You likely downloaded the wrong architecture. If you are on a 32-bit system (rare nowadays), you need the x86 version. If you are on an ARM-based device (like a Surface Pro X), you need the ARM64 version.
What's new in .NET Desktop Runtime 8.0 x64 2021?
For the End User:
You generally do not choose to install this manually. You install it because an application prompted you to ("You need .NET 8 to run this app"). You just want the install to be fast, small, and not interrupt your work. The .NET 8 runtime is optimized to be lightweight and install silently in the background.