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220-1202 Practice Question: A user is trying to install a legacy application…
A user is trying to install a legacy application on Windows 10, but the installer fails with a message about 'incompatible version'. The application is known to work on Windows 7. Which compatibility settings should you try first to allow the installation to proceed?
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
✓
Right-click the installer, go to Properties > Compatibility, and check 'Run this program in compatibility mode for: Windows 7'.
Windows 10 includes compatibility modes that emulate older versions of Windows. Running the installer in compatibility mode for Windows 7 can often resolve version-check errors, as it tricks the application into thinking it is running on a compatible OS.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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Set the installer to run as an administrator.
Why it's wrong here
Running an installer as an administrator grants elevated privileges, allowing the program to make system-wide changes, access protected files, and modify the registry. However, this action does not alter how the operating system identifies its version to the application. If the legacy application specifically checks for an older Windows version and halts due to an incompatibility, elevated privileges alone will not bypass this version check.
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Enable the 'Reduced color mode' compatibility setting.
Why it's wrong here
The 'Reduced color mode' compatibility setting is specifically designed to address visual rendering issues for very old applications that were developed for display adapters supporting limited color palettes, such as 256 colors or 16-bit color. Enabling this setting forces the display environment to emulate these older color depths, preventing graphical glitches or crashes related to modern high-color displays. It has no functional impact on the operating system's reported version or its core API compatibility for application installation.
- ✓
Right-click the installer, go to Properties > Compatibility, and check 'Run this program in compatibility mode for: Windows 7'.
Why this is correct
This option is the direct and most effective solution for a legacy application failing due to an operating system version incompatibility. By selecting 'Run this program in compatibility mode for: Windows 7', the current Windows operating system (e.g., Windows 10 or 11) presents itself to the installer as if it were Windows 7. This 'shim' layer intercepts API calls and system information requests, allowing the application to proceed with installation, believing it is running on its intended older environment.
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Use the Program Compatibility Troubleshooter from the Control Panel.
Why it's wrong here
The Program Compatibility Troubleshooter is an automated wizard designed to detect and apply various compatibility settings for problematic applications. While it can be helpful for unknown issues, for a known problem requiring a specific compatibility mode, manually configuring the setting via the program's properties is often more efficient and reliable. The troubleshooter might not always select the optimal mode or could suggest unnecessary adjustments, making the manual approach preferable for targeted fixes.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 220-1202 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 220-1202 exam.