Diego got hacked. He was online, and someone gained access to his desktop through remote access. He saw them start open files and folders. So he shut the computer down. He then tried running Malware Bytes and his AVS, but neither found anything. Leo says there has to be a remote access program on his computer. He advises going into add/remove programs and see if there's anything he doesn't recognize. Uninstall anything you don't know why it's there. To be certain, backup your data, format your hard drive, and then reinstall Windows from a known, good source. It's really the only way to be sure. Also, reset your router. Diego may also want to change all his passwords.