Re-check that you are entering the number correctly and that it is for the Extended version, not just the standard CS5. Conclusion
Open the folder and look for the (Windows) or Install.app (Mac) file.
Ensure you have your genuine 24-digit serial number ready. The full version installer requires this key during setup to unlock the permanent offline license. 3. Step-by-Step Installation Guide adobe photoshop cs5 extended full version install
Choose whether you want to install both the 32-bit and 64-bit versions (available on Windows) or just the 64-bit version.
Manually download and apply the final stable updates released for CS5 (such as the Photoshop 12.0.4 update). These patches resolve critical performance bugs, text engine errors, and security vulnerabilities. 5. Troubleshooting Common Installation Errors Re-check that you are entering the number correctly
Temporarily disable your antivirus software to prevent it from blocking the installation scripts.
Installing the full version of Adobe Photoshop CS5 Extended requires your legitimate serial number and the original installation media (either a retail disc or the official installer files). Step 1: Prepare Your System The full version installer requires this key during
Choose your preferred installation directory, or leave it at the default path. Click . Step 5: Complete the Installation
To install Adobe Photoshop CS5 Extended, you'll need to download the installation files from Adobe's official website or purchase a physical copy of the software. Here's a step-by-step guide:
While modest by modern standards, ensure you have at least 1GB of RAM (2GB recommended), a 1024x768 display, and sufficient disk space.
Camera Raw 6 provides superior noise removal and sharpening. System Requirements for CS5 Installation