How to See Hidden Files and Folders on Windows
From File Explorer, and how to hide your own (without it being real protection).
Windows hides certain files and folders by default (mostly the system's own), but you might also have your own files marked as hidden without knowing it.
Showing them
- Open File Explorer.
- "View" tab (at the top) → "Show" → check "Hidden items".
Hidden files and folders will appear looking somewhat more transparent than the rest, so you know which ones they are without confusing them with normal files.
Warning: many system files are hidden precisely to stop them from being modified or deleted by mistake. Seeing them isn't dangerous, but avoid deleting anything you don't recognise inside system folders like Windows or ProgramData.
Hiding one of your own files
Right-click the file → Properties → check "Hidden" → OK. Useful if you want something not to show up at a glance for other people using the same machine, without going as far as password protecting it.
Note: hiding a file doesn't genuinely protect it — anyone who knows how to turn on "Hidden items" (as you just learned here) can see it just the same. If you need real protection, our guide on how to password protect a folder is the right option.
Frequently asked questions
Is it safe to turn on the option to see hidden files?
Yes, seeing them poses no risk by itself. The care needed is not deleting or modifying system files you don't recognise, whether hidden or visible.
Does hiding a file protect it from others seeing it?
Not genuinely — anyone who turns on 'Hidden items' in File Explorer can see it just the same. For real protection, you need to password protect the folder.
Why does Windows hide certain files by default?
To prevent critical system files from being accidentally modified or deleted by mistake, since many of them are necessary for Windows to work correctly.