Frist,thank you can read this question.I come from China ,My English is not good enough.
I have been use Avast 30days. Iuse it to check my computer yesterday evening. When it tell me find a virus .Because of computer game,I haven't seen it clearly and remove the file. But today morning ,I find this file is one of important files in my computer. I don't have any backup about it. So ,I wan't someone can help me recovery this file. Thank you very much.