I found the wallet.dat file what is next step to take?
Test if it's corrupted by installing Bitcoin core and opening the wallet.dat file with it. You can do that after installing Bitcoin core by opening a folder called Bitcoin using the instructions in the quote. After the folder is open you should be able to see a file named wallet.dat inside it. Replace that file with the wallet.dat you recovered and start Bitcoin core. If it's not corrupt Bitcoin core should show addresses from the wallet.dat in its GUI.
Click the windows start button, then copy and paste the line of text below into the search box that appears, then press the enter key to open the hidden folder containing your Bitcoin wallet.dat file.
%appdata%\Bitcoin
This is what your search box should look like after you have copied and pasted the line above into it.
