Open windows explorer (double click on Computer or right click and select "Open").
Open Organize menu below "File Edit" menus. Select Folder and Search Options.
In the opened Folder Options, go to View tab. In the Advanced settings, open the "Hidden files and folders". Click the radio button on "Show hidden files, folders, and drives". Click on "OK" button to apply the settings and close the dialog box. Hidden Files and Folders - Show or Hide
Now in windows explorer you can see the hidden files and folders. Navigate to the folder where you have previously created the hidden folder. You will see it now.