If you are getting the following error while starting your Windows, don’t need to worry.
Application not found
This is Bing Search Engine issue. To get rid of this error, you need to completely remove from your web browser and system.
Remove Bing from Internet Explorer: Open Internet Explorer – Manage Add-ons – Search Providers – Select Bing and click on Remove.
Remove Bing from Control Panel – Go to Add/Remove Programs and uninstall all Bing related programs.
Remove Bing from Metro Start screen – Search Settings – Off Bing.