There’s usually no reason to edit or change these hidden files, nor is it advisable. If you move, rename or accidentally delete these items, certain applications may stop working or the Windows installation may be damaged. In the worst-case scenario, changing these files can cause a total system failure.
Therefore, never make any changes to hidden system files unless you know exactly what you’re doing. When in doubt, you should consult with your system administrator. It’s also advisable to create a system backup beforehand so you can restore your system in the event of an emergency.
Sometimes you still might need to access these hidden files, for example if you want to clean up the Windows.old folder, which contains a backup of the system files of your previous Windows installation. In this case, you have the option of viewing the hidden files. The procedure differs slightly depending on the version of the Windows operating system you're using.