Hey, There!
I'm a user of Windows! From a couple of days, I've been experiencing this issue.
Whenever I open the Minecraft app, it gets stuck at 35% loading process.
Before this issue occur, I had copied my old minecraft world folder from another drive to C Drive.
Since then, this issue is happening!
Kindly help...
Minecraft Version: Minecraft Bedrock for Pc (trial)
Windows Version: Windows 10 Home (Latest Version)
Graphics: Updated to the latest version
Credit goes to @Lukasz Redzinski from another thread, but the solution is so simple. It's a Realtek audio driver issue. I uninstalled it from Control Panel, restarted and the computer still had audio AND Minecraft loaded right up!