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This section describes how you may use computer software.

Follow the steps given in section 5 of this guide, “When Copyright Permission Is Needed,” modified as follows. 

You may:

  • Make a “backup” copy to protect software against damage or deletion.
  • Modify software to enable it to be used on a particular computer.

But you may not:

  • Engage in any activity that would decrypt or otherwise interfere with technological measures already employed by the copyright holder to prevent retention or unauthorized distribution of the work.

§117, Copyright Act