The computer I'm using was rife with spyware when we bought it. (It was secondhand.) So, wanting to get rid of all of these nasty bits and pieces, I went to www.lavasoft.com, to download Ad-aware. I chose to download it from download.com, then had a nasty surprise - everything was wonderful after the download, until trying to install the program. An error message in German popped up, and it wouldn't go any further than that. After trying a couple of the other available mirrors, the same problem kept occuring. I've ran the virus program, to no avail.
Any help on what to try now, please?