Change Internet Explorer default Download Directory

Click [Start] [Run] [Regedit] and navigate to the following Key:
[HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer]

In the right-pane, change the data for [Download Directory] to your existing download folder
[Enter full path, say E:\Internet\Downloads]

If the entry is not found, create a new String Value [called as REG_SZ] named Download Directory and set the data accordingly. Quit Registry Editor and Restart Windows