Windows 10: Calendar app doesn`t start. The app icon in Start Menu flash

Since yesterday I can`t start the Calendar app. The icons on start menu flash between top half blurred or underlined. The Mail app icon flashes in the same way.
The attached icon to start menu is blurred too with an exclamation mark in down right corner.
I can`t start the app from anywhere. The app cannot be reinstalled.

What that mean and what supposed to do to fix it.


I upload pics of the start menu with the flashed icons.




:)

 

Start menu default internet acces icon screwed?

You generally set that via the Start Menu settings (right-click start menu -> properties).

I had that issues a while ago, and it meant removing it from the Start Menu, and reinstalling my browser to get the icon back, it was very odd.

 

missing icons in start menu

Hi Wickiwizard,

It is possible that the icon of your apps in Start menu is missing due to a corrupted system files. To provide you the accurate resolution, kindly answer the following questions:

• Have you made any recent changes prior to this issue?
• Does this happen only with icons in Start menu?
• What troubleshooting steps you've done so far?

Meanwhile, we suggest that you perform the steps in this
article on how to troubleshoot problems with Start menu or Cortana.

If the issue still persists, we recommend that you follow the suggestion shared by
Meliton Dec on this thread.
The given troubleshooting steps will help repair or reset not only missing apps but also lost icon.

Keep us posted if you need additional help.

 

Cannot hide app list in Start Menu Windows Home

Hi, suggestion in this thread on this topic here:
can not hide app list in start menu Solved - Windows 10 Forums