The possibility of returning the money by the police is very weak. What happened was painful to me. of course i setup anew clean OS .
I recommend you to move from Windows to Linux and buy a Hardware Wallet (preferably Trezor/Ledger as they've been tested and used for a long time already and had their security proven). Windows is less safe and has crappy privacy. If you want to feel safer, learn to use Linux and move to it.
It's a hard lesson you had to learn but move on. My recoveries always overcame the losses.