We are contacting you regarding a past Prime Video purchase(s). The below content is no longer playable on Prime Video.
In an effort to compensate you for the inconvenience, we have applied a £5.99 Amazon Gift Card to your account. The Gift Card amount is equal to the amount you paid for the Prime Video purchase(s). To apologize for the inconvenience, we've also added an Amazon Gift Certificate of £5 to your account. Your Gift Card balance will be automatically applied to your next eligible order. You can view your balance and usage history in Your Account here:
Use yts.mx, if you use any other site, try checking comments first if they have them, if not you can use torrent file viewer to check the download is actually a video file before downloading
Lastly you could try anti virus, but don't rely on it to do your job for you, they can catch most but not always all viruses