so by accident I turned all of my files into 7zip files (dont ask how) and so I was looking up online how to fix it and someone said, to uninstall zip and restart your computer (my computor is a toshiba laptop) so I did that and then suddenly I couldnt open any single program I had! they were all turned into.Ink files! (an .ink file looks like a little blank piece of paper) so basicly I need help, I tried restoring my pc to a different date but that didnt help, I don't know how to reinstall windows because I dont have this certain disk, PLEASE HELP! I have school stuff on it and I need this laptop for school. I really need help!