Install applications on 2nd computer via USB?

You'll need to download the installation file, transfer the file to the USB, and then use the USB to install on the secondary computer. Best of luck!

if you need a more complete list of downloads:

Single user licensee downloadable installation files available:

• Suites and Programs:    CC 2018 |  CC 2017 |  CC 2015.5 | CC 2015 | CC 2014 | CC 2013 | CS6 | CS5.5 | CS5 | CS4, CS4 Web Standard | CS3
• Acrobat:  DC, XI, X | X,X suite,9,9 extended | 8 | 7 |
• Authorware:  7.01 windows |
• Captivate:  10 (2017) | 9 | 8 | 7 | 6 | 5.5, 5 | 1
• Cold Fusion:  11, 10 | 9.0.2, 9.0.1, 9.0.0, 8.0.1, 8.0.0, 7.0, 6.1, 6.0, 5.0, 4.0 |
• Contribute:  CS5 | CS4, CS3 | 3,2
• eLearning Suter:  2.5 7z |2.5 exe |
• FrameMaker:  12, 11, 10, 9, 8, 7.2 |
• Lightroom:    6.14| 5.7.1|  4.4 | 3.6 | win 2.7, 1.4.1 | mac 2.7, 1.4.1 |
• Photoshop Elements:  2018,15,14,13,12,11,10,9,8 | 9,8,7 win | 8 mac | 7 mac
• Premiere Elements:  2018,15,14| 13,12,11,10,98 | 7
• RoboHelp:  2015, 11, 10, 9, 8

Updates

• non-cc updates
• CC (2013) Updates:
• •   Windows
  •   macOS
• CC 2014 Updates:
• •   Windows
  •   macOS
• CC 2015 Updates:
• •   Windows
  •   macOS

• Download and installation help for Adobe links

• Download and installation help for Prodesigntools links are listed on most linked pages.  They are critical; especially steps 1, 2 and 3 which also apply to eLearning Sute 2.5.  If you click a link that does not have those steps listed, open a second window using the Lightroom 3 link to see those 'Important Instructions'.

And a big thank you to Jim @ Prodesigntools for helping me with these links!