Windows 10: apps not open and white line underneath in windows 11

hi I was open Microsoft whiteboard it did't open then I tried Microsoft store and the same thing happen and with feedback hub,hp smart and so on any solution

:)

 

White lines under installed programs, wont open.

As the title suggests, I am having a problem where pre installed apps have white lines when I click on them and they wont open, as shown here imgur.com

 

white line underneath taskbar

ive recently got a oled tv as my monitor ,and due to the potential for burn in.

i have set black as solid colour on background ,taskbar grey (cannot have black)

but im getting a small white line below taskbar .sometimes it will disappear sometimes not

if im using anything in taskbar .the section on the taskabr where the icon is will be lighter ,compared to the rest of the white line

im baffled, googled for a remedy, no joy .

anybody come across this

thanks

 

white line under icons on taskbar

icons on taskbar in windows 10 has a white line under all programs list in it that are open, is there a way of removing it?