Install your photoshop software

1. Before you install, be sure to close all applications currently running on your system (including other Adobe applications, Microsoft Office applications, and browser windows). We also recommend that you temporarily turn off virus protection during the installation process.
2. You must have administrative privileges or be able to validate as an administrator.
3. Do one of the following:
   
   Windows:
   Insert the DVD in your drive, then follow the on-screen instructions. If the installer does not launch automatically, navigate to the Adobe Photoshop CS5 folder found at the root level on the DVD and double-click Set-up.exe to start the installation process.
   If you downloaded the software from the web, the installer will self-extract and launch automatically. If the installer does not launch automatically, open the folder, navigate to the Adobe CS5 folder, double-click Set-up.exe, and then follow the on-screen instructions.
   
   Mac:
   Insert the DVD in your drive, navigate to the Adobe Photoshop CS5 folder found at the root level on the DVD, double-click Install.app, and then follow the on-screen instructions.
   If you downloaded the software from the web, open the folder, navigate to the application folder, double-click Install.app, and then follow the on-screen instructions.

4. If you are installing as an upgrade, the installer will check your system to find a valid upgrade product. If it cannot find one, it will ask you to input the serial number of the product being upgraded. You can also install the software as a trial, then input your new and previous serial numbers in the serialization screen shown during launch.  
5. For additional CS5 installation help, go to www.adobe.com/go/cs5install/. 

Adobe Photoshop CS5 and Adobe Photoshop CS5 Extended

Both Adobe Photoshop CS5 and Adobe Photoshop CS5 Extended have the option to run natively in either 32-bit or 64-bit editions of Windows® Vista® Home Premium, Business, Ultimate, or Enterprise with Service Pack 2, Windows® 7 or Macintosh OSX v10.5.7 - 10.6.2.

Macintosh 64-bit

Photoshop will automatically detect and run the 64-bit version on 64-bit Macintosh systems. To force Photoshop to launch the 32-bit version, navigate to the application and "Get Info" (Control + Click on the application icon), then select the "Open in 32-bit mode" checkbox.

Microsoft® Vista® or Windows 7

Photoshop will automatically install the 32-bit version of Photoshop CS5 if you are on a 32-bit Windows OS. Photoshop will install both the 32-bit and 64-bit versions of Photoshop on 64-bit systems. To install only the Photoshop 64-bit version on a 64-bit Windows OS, follow the steps below:

1. Run the Photoshop CS5 installer.
2. Enter your serial number. Click Accept.
3. On the right side of the Options panel under the 64-bit heading, uncheck the box for Adobe Photoshop CS5. Leave the "Adobe Photoshop CS5 (64-bit)" option checked.
4. Finish installation.

Known issues

• On Mac, you cannot install to the root directory of the boot drive.
• When installing on Vista64, an incorrect default installation location appears. The application will be installed in the correct location: C:\Program Files (x86).
• The "Total Size" displayed in the Installer Options screen includes space required for components required for the installation but NOT shown in the component list; the number may not equal the listed components size.
• For more detailed information about troubleshooting your installation, go to www.adobe.com/go/support_loganalyzer.

Note: In order to install additional components or reinstall your software after your original installation, you will need access to the original installer (CD, DVD or the download from the web). Repair is not an available option.