Hello AJBUB, and welcome to Seven Forums.
Your description and title of your issue are contradicting each other, so I'm not sure what your exact issue may be.
I would recommend that you check to be sure that you are virus and malware free as Brice posted above.
If your programs are not opening with that program, then downloading and merging the exe
(LNK) options in the tutorial below to see if that may help. It will restore the default associations for these file extensions. Default File Type Associations - Restore
Hope this helps,