220-1102 Question 97
Single answerDisk Defragment (dfrgui.exe)A user reports that a Windows 10 desktop with a traditional mechanical hard drive has become noticeably slower when opening large files. You confirm the system uses an HDD, not an SSD, and there are no signs of malware or failing hardware. You want to use the built-in Windows utility associated with dfrgui.exe to improve disk performance. Which action should the technician take?
- A
Open Optimize Drives, analyze the HDD, and run optimization/defragmentation on the affected volume
- B
Open Disk Cleanup and remove temporary files, because dfrgui.exe is the interface for deleting unnecessary data
- C
Run CHKDSK /R from Command Prompt, because dfrgui.exe repairs bad sectors and file system corruption
- D
Disable scheduled optimization, because defragmentation reduces performance on all types of drives
Show answer and explanation
Correct answer: A
Explanation
The correct action is to use Optimize Drives, accessed through dfrgui.exe, to analyze and optimize the mechanical hard drive. On HDDs, this process can defragment fragmented files so they are stored more contiguously, improving read performance in some scenarios. This is a practical troubleshooting step only after confirming the issue is not caused by malware, insufficient resources, or hardware failure. Microsoft documents Optimize Drives as the built-in Windows tool for drive optimization, with behavior that differs by media type: HDDs may be defragmented, while SSDs are handled differently and should not be treated as though they benefit from traditional defragmentation in the same way. CHKDSK and Disk Cleanup are separate tools with different purposes, so selecting them would not correctly address the scenario focused on dfrgui.exe.
- A. Correct.
Correct. dfrgui.exe opens the Optimize Drives utility in Windows. For a traditional hard disk drive, the technician can analyze the drive and run optimization, which for HDDs includes defragmentation. This is an appropriate step when file fragmentation may be contributing to slower access times on large files.
- B. Incorrect.
Incorrect. Disk Cleanup is a separate Windows utility used to remove temporary files and other unnecessary data. It is not the same as dfrgui.exe, which launches Optimize Drives. A candidate might choose this because freeing disk space can help performance generally, but it does not address fragmentation directly.
- C. Incorrect.
Incorrect. CHKDSK is used to check file system integrity and can locate bad sectors depending on the switches used. It is not the purpose of dfrgui.exe. This distractor reflects a common confusion between disk maintenance tools: CHKDSK checks for logical/file system issues, while Optimize Drives handles drive optimization such as defragmentation for HDDs.
- D. Incorrect.
Incorrect. Scheduled optimization should not be disabled as a general performance fix. Windows uses scheduled drive optimization as a maintenance task, and for HDDs this can help maintain performance over time. The statement is especially wrong because it applies the same rule to all drives; Windows handles HDDs and SSDs differently.