How to restore a previous save in Minecraft, without backup-file or using mods?

Minecraft won't allow you to do it, but Windows does:

This is how you do it (in Windows):
1. Press "Start-menu"
2. Enter the following in the search engine: "%appdata%"
3. Select the folder called "Roaming"
4. Select the folder called ".minecraft"
5. Select the folder called "saves"
6. Right-click on the folder which bears the name of the world in which you want to restore a previous save.
7. Select "Properties" or the equivalent in your language.
8. Select the tab "Previous versions" or your language equivalent.
9. Now you should see a list of previous versions of the folder. There should be at least one previous version.
10. Mark a version which is from a date where you are sure everything is all-right in your world.
11. Click Recover.

Now everything should be fine. But remember to do it right away, or the backup made by Windows might be deleted.

I don't think you ca. Sorry

To restore Minecraft, you need backup-file. So sorry without backup-file, you can't restore it. For Best Protection install Leo Privacy Guard to your Smart Phone, is good app protector, keep snoopers away from private pics, videos, SMS and call log.