So, I was installing a theme for Windows 7 that required me to change the start orb, so I used the program that the theme creator suggested, and that broke my explorer.exe. I get the 0xc000007b error whenever I try to start it through Task Manager. I've tried using sfc on command prompt, but apparently I'm not an admin on my own computer, and I can't do anything about it. I've also tried accessing the control panel through Task Manager, however, I get the class not registered error.
Please answer quickly. I'm using Task Manager and 7-Zip to replace what's missing, but please just try to help soon.
Thanks! (It's also my birthday today!)