Diablo 2 'Play' Instead of 'install diablo 2'

Hello guys,

I just wanted to play diablo 2 - LOD again since a while.
Downloaded the files from the site.
When the installer of diablo 2 pops up it has the 'install diablo 2 ’ button replaced by a ‘play diablo 2’ button.
Anyone knows how to fix this?

Thanks

Check the first reply on this thread by stuffedtiger.

just open regedit and delete the diablo 2 under the blizzard entertainment under software. i can explain it in more detail if you want.