Hello, I recently installed and uninstalled HitFilm. After doing that, Firefox is non-functional. I tried uninstalling and reinstalling (which required using Revo Uninstaller, because the program read as running even though it wasn't). Now when I install Firefox, it says that VRUNTIME140_1DLL was not found, even though the file is clearly in the Programs folder. Firefox installs, but won't navigate to any web pages. Chrome and Microsoft Edge work fine. I asked someone at the computer store and they were completely flummoxed. Please help!