|Not all dll files are in the system folder.|
Downloading files without any regard for the file version can lead to further issues.
If the files were stated by the poster we could help with both version numbers and locations.
We don't know if the machine boots up but if it does it would be better to first try sfc /scannow because if this works it will restore the correct versions.
It is not a good idea to give links straight to exe files because they could be anything. Please give links to the website instead so that both the poster and other helpers have some idea what is being suggested.
Always pop back and let us know the outcome - thanks