I downloaded the windows wallet = I'm infected.

action:
1 i bought a new hard disk.
2 i have installed new windows.
3 i have installed the new denarius wallet.
4 i have copied wallet.dat in the new wallet.
and now?
5 i want to recover the entire blockchain.... is possibile or i have to sync my wallet to the beginning?
6 now i want to move my coin to old wallet with a new wallet... is possibile to create a new wallet in the denarius wallet?
Thank you very much for your help.