I send this user alot of info but no answer ... so maybe there is nothing and just want to show btcforum and his family or freinds a drama story.
but for other peoples who have this problem ... some useful info :

After you check for a wallet.dat and compare it with other wallet
for example Wallet 2010 and Wallet 2016
there is some strings in both of them.
Recovery softwares dont have a "Wallet.dat Extention" so you must dump the file from Hard Disk.

Wallet 2010 :
http://s9.picofile.com/file/8304664892/wallet_2010.png

Wallet 2016 :
http://s9.picofile.com/file/8304664926/wallet_2016.png

b1 string and many more can help you to find START + END of wallet... you can find this in your hard disk dump (HEX MODE)
so its better you done from END to Start.
strings like :
b1 (start )
fromaccount ( middle )
keymeta (end )

http://s8.picofile.com/file/8304678168/Hex_Strings.png

with this Analyse you can search and find the section of wallet.dat file.
and if you dump that section and save to "wallet.dat" you will have a copy of your wallet file.
its not a very hard job but its need alot of attention ... 1byte make your file corrupted.
so you need test alot ( trial and error the saved file for a GOOD copy )

my freind start coding something like it to search in a IMAGE of Hard Disk.i dont know when it finish.

Good Luck.