Device Doctor DONT WORK

[Thomas]

> my computer said several others were not verified not to trust content

That's common, not all hardware manufacturers (who produce the drivers) bother with that. The choice is yours.
If you are worried about that you should best stay with the drivers offered by Windows Update.

> then on one it said what I downloaded was corrputed

You can try to redownload, that might help. If not, it will not be installed thus it can't do any harm.