關於windows installer3.1

好多次會彈出windows installer3.1..跟住..我跟住安裝啦..佢次次都話搵唔到個來源..問題係..我唔知可唔可以dele佢..聽講好似好重要咁..而我又唔見佐隻碟..我想問..dele唔dele得嫁..可唔可以上網下載嫁..比埋個網址我牙..仲有咩方法可以解決嫁..最好唔好dele啦..thx..