Go to the location of your bitcoin-qt file -> Shift+Right click -> Open command window here -> bitcoin-qt -salvagewallet
It doesn't open a command window in Windows 10.
1. Click shift+r and then type "cmd.exe".
2. Locate the bitcoin-qt.exe file and copy the path at the top (where explorer shows the path, click that and you'll get text - you may need to double click).
3. run "cd "+[path you just copied]
4. *optional run "dir | grep bitcoin-qt.exe" (just check that it is there and you're in the right place)
5. run "bitcoin-qt.exe -salvagewallet" and it should run the salvage wallet command.
EDIT: just to check, when you ran the option above, you didn't select the bitcoin-qt.exe file before trying to open the console window did you? It has to run just in the main part of that folder, not in a specific path.
Alternative Method:
Open notepad++/notepad.exe and type "bitcoin-qt.exe -salvagewallet" and save that file as "bitcoin-qt.bat" n the same place as the bitcoin-qt.exe application. (ensure you change the type from ".txt" to "All Files").
Then just select this file in explorer and hit enter.
Cheers, ended up doing it by adding to the shortcut in properties.
