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Disable disk diagnostic user notifications

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Works with Windows 10 and 11Works with Windows Vista, XP, 7, 8, 10, 11, and Windows Server 2008 or newer.
  • Windows onlyThis script improves your privacy on Windows
  • Single actionThis page belongs to a script, containing basic changes to achieve a task.
  • Impact: Medium

    System Functionality / Data Loss Risk: Moderate

    This action improves privacy with minimal impact when you run the recommended script.

    This action improves privacy with some impact when you run the recommended script.
  • Batch (batchfile)These changes use Windows system commands to update your settings.
  • Administrator rights requiredThis script requires privilege access to do the system changes
  • Fully reversible

    You can fully restore this action (revert back to the original behavior) using this website.

    The restore/revert methods provided here can help you fix issues.

Overview​

This script disables the "Microsoft-Windows-DiskDiagnosticResolver" scheduled task.

This task warns users about faults reported by hard disks that support S.M.A.R.T. (Self-Monitoring, Analysis, and Reporting Technology) 1.

This task is disabled by default. However, it is automatically enabled by the Diagnostic Policy Service when a S.M.A.R.T. fault is detected 1.

It runs %SYSTEMROOT%\System32\DFDWiz.exe 1 2. This executable is known as "Windows Disk Diagnostic User Resolver" 1 2.

Disabling this task enhances privacy by preventing the collection and display of information about your hard disk's health and performance. This data, though primarily technical, may reveal insights into your disk usage patterns.

Disabling this task may improve system performance by reducing background activities. Citrix recommends disabling this service for system optimization 3.

Caution

Disabling these notifications may prevent users from being aware of potential disk issues.

Overview of default task statuses​

\Microsoft\Windows\DiskDiagnostic\Microsoft-Windows-DiskDiagnosticResolver:

OS VersionDefault status
Windows 10 21H2🔴 Disabled
Windows 10 22H2🔴 Disabled
Windows 11 22H2🔴 Disabled
Windows 11 23H2🔴 Disabled
Use with Caution

This script is only recommended if you understand its implications.

Some non-critical or features may no longer function correctly after running this script.

This script can be fully reversed to restore changes if something goes wrong.

Sources
PrivacyLearn.com maintains strict sourcing standards for accuracy, integrity and up-to-date content. Our content relies on authoritative sources including vendor documentation, industry standards, and verified research. Learn more about our verification process and quality standards in our editorial standards page.

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  • Offline usage
  • Easy-to-apply
  • Free
  • Open-source
Help

How to apply or restore "Disable disk diagnostic user notifications" using script​

  • ≈ 2 min to complete
  • Tools: Web Browser
  • Difficulty: Simple
  • ≈ 5 instructions
  1. 1

    Download

    Download the script file by clicking on the   Apply protection  button above.
    Use   Undo protection button above to restore changes.
  2. 2

    Keep the file

    If warned by your browser, keep the file.
  3. 3

    Open

    Open the downloaded file.
  4. 4

    Exit

    Once it's done, press any key to exit the window.
  5. 5

    Restart

    Restart your computer for all changes to take effect.

Apply with privacy.sexy​

Guided, automated application with safety checks
  • Recommended for most users
  • Includes safety checks
  • Free
  • Open-source
  • Popular
  • Offline/Online usage
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Help

How to apply or restore "Disable disk diagnostic user notifications" using privacy.sexy​

  • ≈ 3 min to complete
  • Tools: privacy.sexy
  • Difficulty: Simple
  • ≈ 4 instructions
privacy.sexy is free and open-source application that lets securely apply this action easily with more advanced options.
  1. 1

    Open or download

    Open or download the desktop application
  2. 2

    Choose script

    1. Search for the script name: Disable disk diagnostic user notifications
    2. Check the script by clicking on the checkbox.
  3. 3

    Run

    Click on ▶️ Run button at the bottom of the page.

    This button only appears on desktop version (recommended). On browser, use 💾 Save button.

Run commands​

Copy and run commands manually Requires technical knowledge
Apply changes
:: Disable scheduled task(s): `\Microsoft\Windows\DiskDiagnostic\Microsoft-Windows-DiskDiagnosticResolver`
PowerShell -ExecutionPolicy Unrestricted -Command "$taskPathPattern='\Microsoft\Windows\DiskDiagnostic\'; $taskNamePattern='Microsoft-Windows-DiskDiagnosticResolver'; Write-Output "^""Disabling tasks matching pattern `"^""$taskNamePattern`"^""."^""; $tasks = @(Get-ScheduledTask -TaskPath $taskPathPattern -TaskName $taskNamePattern -ErrorAction Ignore); if (-Not $tasks) { Write-Output "^""Skipping, no tasks matching pattern `"^""$taskNamePattern`"^"" found, no action needed."^""; exit 0; }; $operationFailed = $false; foreach ($task in $tasks) { $taskName = $task.TaskName; if ($task.State -eq [Microsoft.PowerShell.Cmdletization.GeneratedTypes.ScheduledTask.StateEnum]::Disabled) { Write-Output "^""Skipping, task `"^""$taskName`"^"" is already disabled, no action needed."^""; continue; }; try { $task | Disable-ScheduledTask -ErrorAction Stop | Out-Null; Write-Output "^""Successfully disabled task `"^""$taskName`"^""."^""; } catch { Write-Error "^""Failed to disable task `"^""$taskName`"^"": $($_.Exception.Message)"^""; $operationFailed = $true; }; }; if ($operationFailed) { Write-Output 'Failed to disable some tasks. Check error messages above.'; exit 1; }"
Help

How to apply or restore "Disable disk diagnostic user notifications" using commands​

  • ≈ 2 min to complete
  • Tools: Command Prompt
  • Difficulty: Medium
  • ≈ 3 instructions
 View step-by-step guide with screenshots
  1. 1

    Open Command Prompt

    Open Command Prompt as Administrator.
  2. 2

    Copy code

    Copy the code:
    Copy Apply Code Copy Revert Code
  3. 3

    Paste & run

    Paste the commands into Command Prompt and press Enter to run.

    Some changes require a system restart to take effect

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About the Creators​

These people have authored this documentation and written its scripts:

  • Avatar of undergroundwires. The creator of PrivacyLearn and privacy.sexy. Black and white portrait showing a person wearing a polka dot tie and suit jacket, reflecting the professional expertise behind the privacy protection tools.
    • Certified security professional
    • 7+ years experience securing banks
    • Open-source developer since 2005
    • EU advisor, Public Speaker, Moderator
    • Hundreds across the globe
    • Testers, reviewers, developers
    • Companies, military agencies
    • Community since 2017
About Us

Reviewed By​

This guide has undergone comprehensive auditing and peer review:

  • Expert review by undergroundwires​

    • Verified technical accuracy and editorial standards
    • Assessed system impact and user privacy risks

  • Public review by large community​

    • Privacy enthusiasts and professionals peer-reviewed
    • Millions of end-users tested across different environments

History​

We continually monitor our guides, their impact and all other privacy options. We update our guides when new information becomes available. On every update, we publicly store who made the change, what has been changed, why the change was made and when the change was made.

Review Change History Our Change Process