Laptop data recovery cost?

I have a question. How much does it cost to have data restored at a store? My Windows 10 somehow crashed and I had to reinstall it. Now all data is gone

An hour for a computer technician costs around 150 euro. And only data production takes about 2 hours if everything is clear. But it can also take longer. Hard to say.

It will be too late now. Now that you have reinstalled Windows, some of your data may be overwritten, if not no longer mergable, because parts are overwritten. You should have done that beforehand. It is always good to make a backup of everything on an external hard drive.