No internet connection to Adobe is required after this.
: The most straightforward way to use Adobe CS5 is to purchase a license directly from Adobe or an authorized reseller. This ensures you receive a legitimate product key and access to official support and updates.
Using a keygen Adobe CS5 may seem like an attractive solution, but the risks associated with it far outweigh any benefits. Malware, system instability, security risks, and potential legal consequences make it a hazardous choice.