Why couldn’t my rmvb form’s thing open

I just installed one to shear the frequency expert, what thing then jumped a change in installment time it not to know, I have selected YES, then I detected that this software was not good, I have deleted, but who knew, therefore I some RMVB form’s thing could not open, I was could also not open with the storm video and music, what establishment could change through the computer? Anxious ~~ thanked each ~~~
If teaches ~ which I will do well me to award marks
You for deleted the media storehouse have installed the video and music broadcast software
Downloads a storm video and music Heavy peaceful storm or ffdshow decoder