Of course you can only recover files from the git repository, when you have commited them - and you are only able to recover the latest version of a file you have commited ...
See for example:
If the file was not indexed by Git, your OS may provide some recovery tools http://windows.microsoft.com/en-us/windows7/recover-lost-or-deleted-files
Or you can try 3rd party apps that will scan your hard drive for deleted data: http://www.lmgtfy.com/?q=recover+deleted+files
Supported Platforms macOS Windows We recently introduced support for additional hosting services such as GitHub Enterprise, GitLab (Cloud, Community Edition, Enterprise Edition), and...
Connect with like-minded Atlassian users at free events near you!Find a group
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no AUG chapters near you at the moment.Start an AUG
You're one step closer to meeting fellow Atlassian users at your local meet up. Learn more about AUGs