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How to run Photoshop CS5 in 32-bit mode

Normally, you'll want to run Photoshop CS5 as a 64-bit application to get the best performance. Unless you have a plug-in that doesn't work in 64-bit. Then you can relaunch and "dumb it down" a bit.

To run Photoshop CS5 on Mac OS as a 32-bit application:
  • Select the Adobe Photoshop CS5 application file, installed by default in the Applications/Adobe Photoshop CS5 folder.
  • Choose File > Get Info, and select Open in 32 Bit Mode.
  • Deselect this option to run Photoshop CS5 in 64-bit mode.

To run Photoshop CS5 in Windows as a 32-bit application:
  • Close Photoshop CS5.
  • Navigate to the Program Files (x86) > Adobe > Adobe Photoshop CS5 folder..
  • Double-click the Adobe Photoshop CS5.exe file.

To run Photoshop CS5 in Windows as a 64-bit application:
  • Close Photoshop CS5.
  • Navigate to the Program Files > Adobe > Adobe Photoshop CS5 folder..
  • Double-click the Adobe Photoshop CS5.exe file.

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