Windows Best Kept Secrets

Windows Best Kept Secrets is a screamer video that was first uploaded to YouTube back in 2007 by a user jhonmcclure.

This video starts with a headline announcing the secrets of Windows XP. We then cut to low quality footage of the user trying to unravel the secrets on his own computer, but on the 33 second mark, a photo negative man with a continuously looped scream will play. And it isn't over there. Another screamer with the same scream will pop up after the video mocks you for falling for it.

Link
NOTE : The following video contains a screamer!
 * youtube.com/watch?v=vP4HQQlYF9M