A problem with the laptop?

Could someone help me? Since around 4 p.m. Today I can't open my Windows Start menu (rather, it does not respond) and I also can't open the Task Manager.

And another problem when I try to open Minecraft Bedrock, the message from Explorer.exe, class not registered "What should I do?"

What did you do before that no longer worked? Do you have something installed? Have you restarted already?

First restart the laptop. Otherwise, if that doesn't work, have you reinstalled something? If so, delete, restart and try again. If that doesn't work, the process that is capable of exploring seems to be somehow broken. The only solution I can think of is to completely reset the PC and reinstall Windows…

I only have a texture pack from Bb Craft installed in the Market Place

Okay, I still have a folder on my laptop called Runtime and I heard you should end the Task Manager, should I delete the folder?

Please do not delete anything that has been suggested. Most of it is super important so that everything runs smoothly.

NEVER delete Windows folders and files if you are not sure what it is and what it does.

Oke thank you