Which version are you running? It seems salvagewallet was removed from 0.21.0, so if you're running a version pre 0.21.0, you could try the initial command given by BitMaxz.
EDIT: i just logged on to my system, and had a look for myself (-help). Seems like the command is:
./bitcoin-wallet salvage --"wallet.dat"
At least, that how it works for me..
On windows, that would make
bitcoin-wallet.exe salvage --"c:\\path to\\wallet.dat"
(at least, i think it'll need double slashes)
So basically, if you're running >=0.21.0, you could try to switch the salvage command and the path...
i do
I:\Bitcoin\bitcoin-qt.exe -salvagewallet I:\bit\wallets\wallet.dat
and
I:\Bitcoin\bitcoin-qt.exe -salvagewallet I:\\bit\\wallets\\wallet.dat
the same effect. Flashes for a second. But nothing starts and nothing happens
-salvage does not work in my version at all. writes that such command is unknown
I really hope that my key that I received after processing the information from the first post by the script will somehow help
"YmM63dDbt...+....."