Ms2dn1.exe -

Right-click the process in Task Manager and select "Open file location."

If the file is in C:\Users\[YourName]\AppData\Local\Temp , it is likely a temporary file or potential malware. MS2DN1.exe

Right-click the .exe file, go to Properties , and check the Digital Signatures tab. A legitimate file from Microsoft will list "Microsoft Corporation" as the signer. If the tab is missing or the signer is unknown, exercise caution. Right-click the process in Task Manager and select