I lost my project because my laptop crashed, even though I saved every 10 minutes, Auto-Save was also on, and I know where my project was and guess what happened… Not there, I even did a backup, too not there… Can this still be saved?
Which IDE was used?
Was it on ner SSD or an HDD? And why do not you use git?
What do we learn from this? Github or similar use.
HDD, I've heard of Github, but unfortunately I've never tried it.
That's exactly what it looks like
Why is the backup gone too? Was it on the same drive as the original?
It is best that you turn off the laptop and then start Linux from a USB stick. Because if you start the laptop normally, then writes the operating system and the programs that run there, constantly something on drive C and thus possibly overwrite your project, if any of it is left.
You can then use a Linux program such as Use Photorec to recover deleted files. If that does not work, you could use a hex editor as a last resort and search the drive for your source code.
It does not necessarily have to be Github, there are also other solutions (for example Bitbucket by Atlassin), whereby Github is probably already the best known solution. Take a look at it and use it as much as possible, since it can protect you from something comparatively well.
To your problem: I would try it with Recuva or a similar program.
Instructions: https://www.heise.de/...99654.html
It would be even more useful to do the whole thing about a LiveOS. If I'm not mistaken, Hiren's Boot CD comes with data recovery software.
I find it strange that your project should be away despite regular saving + AutoSave + Backup. As Spiderpig42 already wrote, you should try to start a Linux from the USB stick to prevent overwriting your project. Then I would search the hard drive for the project, and if you found it, back up externally.
P.S.: Do not forget to set the boot order so that the USB stick will boot first, otherwise Linux will not help you!