Right-click on "Downloaded Program Files" Folder Select Properties
Un-check "Read-Only" box > click Apply.
When Attribute changes Pop-up appears > click on OK to change the files
(which are those that cannot be deleted)
The Damaged Files should now be able to be deleted.
Afterwards make sure to change the folder back to read only, to preserve it from being messed with(by a hacker or rogue website)