Windows 10: Account options dont work, start, search dont work, windows apps crashes

Hello I have a problem with account switch. Once I changed to local account, I cant go back to admin. Also, start and search bars, as well as other windows 10 pro apps dont work. I have tried to restore over cmd and task manager to reset startexperiencehost and shell but it did not work. I never had problems like this in the past several years that Im using Windows 10 Pro.

:)

 

Why the search option dont work?

I try to search files on my computer, but the icon dont work

 

atiflash dont work

hello i have a big problem i want to flash my ASUS ati Radeon x850 Pro vivo PCIE card becouse the 16 pipelines and the first step to flash the card with Flashrom is no problem but if i want to flash the Card back to the original bios with atiflash then it do not work (i think it dont accept the device 0) can anybody help me to get it work? (flashrom work with device 0 but atiflash not)

 

windows 10 start menu apps tiles dont work

tiles don't work. already tried:

I suggest you to run Windows Store Apps troubleshooter and check if it fixes the issues.
Follow these steps to run the Windows Store Apps troubleshooter:

• Press Windows key + X on the keyboard.
• Click on Control panel.
• Type “Troubleshooting” without quotes in the Control panel search box.
  
• Click on Troubleshooting and click on View all.
  
• Click on Windows Store Apps troubleshooter and follow the on-screen instructions.

and
To get these apps working again, you’ll need to follow these steps:

• 
  Open powershell as administrator
  
• 
  Run the command Get-appxprovisionedpackage –online | where-object {$_.packagename –like “*windowscommunicationsapps*”} | remove-appxprovisionedpackage –online
  

3. Re-install the Mail, People and Calendar apps from the Store (green tile).

troubleshooter said there is no problem and the power shell gave me some error code.