How Many Computers Can You Install Adobe Lightroom 5 On?
Question details
The user wants to know the maximum number of computers allowed for installing and activating Adobe Lightroom 5 under a single license.

- Product
- Adobe Lightroom 5
- Device & OS
- not provided
- Scenario
- Planning to install or use Adobe software on multiple devices and needing to understand activation limits.
- Observed behavior
- Seeking clarification on activation limits and permitted use to avoid violating the software license agreement.
Ensure you have your Adobe ID and the original 24-digit serial number for Lightroom 5 ready before attempting to install or activate the software on a new device.
Review Adobe's Activation Limits for Lightroom 5
According to Adobe's standard perpetual licensing agreement for older standalone products like Lightroom 5, you are typically allowed to install the software on up to two computers.
Adobe's End User License Agreement (EULA) traditionally allows a single user to install Lightroom 5 on a primary computer and a secondary computer (such as a desktop and a laptop) for their own exclusive use.
If you need to install the software on a third computer, you must first deactivate it on one of the previous two machines to free up an activation slot.
Launch the Adobe Lightroom 5 application on one of the computers where it is currently installed and activated.
Click on 'Help' in the top menu bar of the application.
Select 'Deactivate' or 'Sign Out' from the dropdown menu to release the license from this specific computer.
Download and run the Lightroom 5 installer on your new computer, then enter your serial number when prompted to activate it.

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Frequently Asked Questions
Can I install Lightroom 5 on both a Mac and a Windows PC with one license?
Typically, perpetual licenses for standalone versions like Lightroom 5 were platform-specific. A Windows serial number usually only works on Windows, and a Mac serial number on Mac. If you need it on both, you may need two separate licenses.
What happens if a computer with Lightroom 5 crashes and I cannot deactivate it?
If your old computer crashes or is stolen and you cannot access it to deactivate Lightroom 5, you will need to contact Adobe Customer Support directly. They can manually reset your activation count on their end.
Is Adobe Lightroom 5 still supported by Adobe?
Adobe Lightroom 5 is a legacy product. While you can still use it indefinitely if you have the installer and a valid serial number, Adobe no longer provides software updates, bug fixes, or official technical support for this version.




