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FC0-U71 Practice Question: A user receives an error 'This application cannot…
A user receives an error 'This application cannot run on your PC' when trying to install a legacy program on Windows 10. What is the most likely cause?
⚠ Common exam trap
Candidates often confuse this architecture-specific error with general hardware or security issues, such as insufficient RAM or missing antivirus, because they assume any installation failure is due to resource constraints or security blocks rather than a fundamental CPU instruction set mismatch.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Incompatible architecture (32-bit vs 64-bit)
The error 'This application cannot run on your PC' typically occurs when a 32-bit legacy program is incompatible with the 64-bit architecture of Windows 10, or vice versa. 64-bit Windows cannot execute 16-bit or certain older 32-bit applications that rely on deprecated system components like NTVDM (NT Virtual DOS Machine) without proper compatibility layers. This is the most likely cause because the error specifically points to an architecture mismatch, not hardware or security issues.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Incompatible architecture (32-bit vs 64-bit)
Why this is correct
The program may be incompatible with the system's processor architecture.
- ✗
Corrupted hard drive
Why it's wrong here
A corrupted hard drive would show different symptoms like crashes or data loss.
- ✗
Insufficient RAM
Why it's wrong here
Insufficient RAM typically causes performance issues, not compatibility errors.
- ✗
Missing antivirus
Why it's wrong here
Antivirus software is not required for installation.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This FC0-U71 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the FC0-U71 exam.