how to change what you open the files with
my files keep opening with note pad how would I change that
This also usually works:
Right-click file > Open With > Select program you want to always use for that file type (use '[Browse...]' button to find the program's '.exe' if not there) & tick the 'Always use the selected program to open this kind of file' tickbox (Win7 instructions. Win10 is likely to have something similar) > '[OK]'.
Also, reinstalling the application you want to use for a file type can work sometimes &/or checking it's settings & setting it as the default program for that file type usually works too.