Pasul 1:
Intra in Start -> Run
Pasul 2:
La Run scrieti REGEDIT
Pasul 3:
In fereastra care a aparut cauti in stanga HKEY_CURRENT_USER -> Software
Pasul 4:
La Software va aparea un key numit Valve; il selectezi si il stergi apasand tasta Delete.
Pasul 5:
Deschideti Counter-Strike (in caz ca va cere CD-Key, scrieti AAAAA-AAAAA-AAAAA-AAAAAA-AAAAAA).