Launcher looks weird and it stops and says unable to update

When I open the launcher it doesn't look like it would normally,when it comes up it's just a small white screen named launcher and it has a loading bar in the middle and it says downloading runtime,why is it doing that when I had minecraft before it looked normal but yesterday when i downloaded the launcher it did that.Help please
Best Answer
From your description I think the launcher is doing exactly what it's supposed to do, updating. The Minecraft launcher does update. And about the unable to update part, I have no idea what that is about but I pulled this from somewhere about someone with the same problem:
Go to C:\Program Files(x86)\Minecraft\tmp and rename the .tmp file to MinecraftLauncher.exe copy and overwrite the MinecraftLauncher.exe file in C:\Program Files(x86)\Minecraft with the renamed file. restart the game, let it run through its course and the game should start from there, mine did and I was very glad.
I recommend you try it out.
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Why does my Minecraft say unable to update native launcher?
To update Minecraft, start the Minecraft Launcher. Click "Options" next to the username textbox, then "Force update!" on the "Launcher Options" window. Finally, click "Done" and login with your Minecraft credentials. Minecraft will start updating itself.How do I force a Minecraft launcher 2021 to update?
Try repairing the Launcher using the following steps:Fix \
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