u guys can see it:
thats a windows issue not a unreal engine issue.
and what can i do to fix it?
dont know im not a windows expert. try googling and contact windows customer support. this answerhub is for the unreal engine so we cant really help you on unrelated topics.
It looks like your files aren’t associated.
If you launch just the engine from the epic games launcher it usually gives you a prompt to fix it.