Windows 10: My start menu is broken or something

I click it and nothing happens, and there's a message on my screen, it says: "Critical Error, Your start menu isn't working. We'll try to fix it the next time you sign in". I don't know what to do, help?

:)

 

Broken/Duplicate Item in Start Menu

Okay, I ran both commands, and the broken Netflix start menu item was still there, so I restarted my computer and it was still there. I made sure the spacing was right and they seemed to have run properly, I just forgot to take a screenshot as proof before
I closed the Command Prompt.

 

Broken/Duplicate Item in Start Menu

Hi,

The duplicate icon that's appearing in the Start Menu may be due to broken system components or file corruptions. Let's try resolving this concern by running the
System File Checker tool. This will scan and restore any corrupted system files. To do this, here are the steps:

• Type Command Prompt in the Search box from the taskbar.
• Right-click on it, then select Run as administrator.
• Enter DISM.exe /Online /Cleanup-image /Restorehealth (note the spaces before each "/").
• Enter sfc /scannow (note the space between "sfc" and "/").

We’ll wait for your update after trying the steps provided.

 

Start Menu is broken after installing Windows 10

After installing Windows 10, my Start Menu got totally broken.

Most of the programs and absent in it now. They can't be found neither by search, nor by step-by-step navigation.

Some of programs are substituted for another versions.

Simultaneously, the Start Menu folder is Ok in filesystem.

So my entire Start Menu is useless now.

To run any program, I am opening Far Manager (file manager), opening Start Menu folder in it and doing search for appropriate *.lnk file.

I.e. I am doing by hand what Windows should do with it's Start Menu feature.

*.lnk files are working fine.

Various aspects of the problem were discussed in questions:

Where are ALL locations of Start Menu folders in Windows 10?

How to fix / refresh start menu in Windows 10? How to add / remove / edit items in bulk?

Can't find applications anymore in Windows 10

So, please don't suggest primitive solutions, covered there?