Symptoms

1. You can find the following records in the installation log:
   

   Prompt for source of package: FREnginex64, payload: f182AF16142DC83CD5F96C2505A484794, path: C:\.\.\.\.\.\.\.\.\Samples\Samples.zip
   Failed to resolve source for file: C:\.\.\.\.\.\.\.\.\Samples\Samples.zip, error: 0x80070002.
   Error 0x80070002: Failed while prompting for source (original path 'C:\.\.\.\.\.\.\.\.\Samples\Samples.zip').
   Failed to acquire payload: f182AF16142DC83CD5F96C2505A484794 to working path: C:\Users\.\AppData\Local\Temp\{E948BAF7-C824-45FE-8CE5-7B415366C05B}\f182AF16142DC83CD5F96C2505A484794, error: 0x80070002.
   Error 0x80070002: Failed while caching, aborting execution.

2. You can't unmark the checkbox (it's disabled) for the Code Samples at the Program Features section of the Installation Wizard.
3. Samples.zip is missing from the installation package of FineReader Engine

Cause

The installer can't find Code Samples and proceed with the installation of FineReader Engine

Resolution

Redownload the latest version of ABBYY FineReader Engine for Windows from this link