oh also here is a way to see if you have hidden files you havent found yet, then once you see the files that arent supposed to be hidden you can change them back to normal
Follow these steps to display hidden files and folders.
Open Folder Options by clicking the Start button Picture of the Start button, clicking Control Panel, clicking Appearance and Personalization, and then clicking Folder Options.
Click the View tab.
Under Advanced settings, click Show hidden files and folders, and then click OK.