# Enable case sensitivity for filenames under DOS > Learn how to enable case sensitivity for filenames in a specific folder on Windows, just like on Linux. Use PowerShell and the fsutil.exe command. ---  **TL;DR** Did you know you can make a folder on Windows case-sensitive, just like on Linux? This quick tutorial shows you how to enable case-sensitivity for filenames in a specific directory using a single command. By running `fsutil.exe file setCaseSensitiveInfo . enable` in an administrative PowerShell, you can have `MyFile.txt` and `myfile.txt` exist as two separate files in the same folder. This is just ... for fun. As you know, MS DOS didn't make any difference between `MyFile.txt`, `myfile.txt`, `MYFILE.txt` since DOS isn't case sensitive. If you don't believe me, just start notepad, type a few characters and save your work once as `MyFile.txt` then as `myfile.txt` then as `MYFILE.txt`. Then look at your folder, how many documents do you have? Just one. Under Linux, you would have had three files; not under DOS. What if we asked DOS to change its ways? Here's the result: three files, same name, different case, living side by side in the same Windows folder.  To do this, you'll need to start [Windows PowerShell](/blog/windows-terminal) as an admin.  Then jump in the folder where you want to enable case sensitivity. Let's say in C:\Temp. In your PowerShell console, now start `fsutil.exe file setCaseSensitiveInfo . enable` and press `Enter`. After a few seconds, the change will be made — the same result already shown at the top of this article. To revert your change, run `fsutil.exe file setCaseSensitiveInfo . disable` but, first, you'll have to remove at least two files because DOS will prevent you from disabling the feature if this would create conflicts. *Case sensitivity is not the only Windows/Linux mismatch that will bite you when the same repository is used on both systems; line endings are another one, and [Git - Some tips for your .gitconfig file](/blog/git-config) shows the setting that prevents git from silently rewriting them.*