: Open Windows Security > Virus & threat protection > Protection history to see if the file was blocked.
Most of the time, the file isn't gone—it's just "locked up" by your antivirus. Open (Windows Defender). Go to Virus & threat protection > Protection history . ac valhalla empdll
Look for an entry related to emp.dll (it may be labeled as "HackTool" or "Trojan"). : Open Windows Security > Virus & threat