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Seem like dptf_helper.exe is preventing my laptop to enter sleep mode

Anonymous
2021-12-04T17:49:49+00:00

Hello,

I just got a new laptop Dell Latitude 7420 and noticed that the laptop cannot go to sleep, instead, it only turn off the display.
I try many fix, and end up execute 'powercfg /energy' in CMD. The report point to 'dptf_helper.exe' as a culprit. How to solve this issue? I really need the laptop to go to sleep as I travel a lot for work.
I paste the report below:

Computer Name XXXX
Scan Time 2021-12-04T16:57:57Z
Scan Duration 60 seconds
System Manufacturer Dell Inc.
System Product Name Latitude 7420
BIOS Date 09/03/2021
BIOS Version 1.9.3
OS Build 19042
Platform Role PlatformRoleMobile
Plugged In true
Process Count 226
Thread Count 2836
Report GUID {7803ce20-15d1-4a5f-8c83-9ca7edfd4cbd}

Analysis Results Errors System Availability Requests:System Required Request The program has made a request to prevent the system from automatically entering sleep.

Requesting Process \Device\HarddiskVolume3\Windows\System32\DriverStore\FileRepository\dptf_cpu.inf_amd64_fa6b3fb2c05394c2\dptf_helper.exe

System Availability Requests:Display Required Request The program has made a request to prevent the display from automatically entering a low-power mode.

Requesting Process \Device\HarddiskVolume3\Windows\System32\DriverStore\FileRepository\dptf_cpu.inf_amd64_fa6b3fb2c05394c2\dptf_helper.exe

USB Suspend:USB Device not Entering Selective Suspend This device did not enter the USB Selective Suspend state. Processor power management may be prevented when this USB device is not in the Selective Suspend state. Note that this issue will not prevent the system from sleeping.

Device Name USB Composite Device
Host Controller ID PCI\VEN_8086&DEV_A0ED
Host Controller Location PCI bus 0, device 20, function 0
Device ID USB\VID_046D&PID_C52B
Port Path 3

CPU Utilization:Processor utilization is high The average processor utilization during the trace was high. The system will consume less power when the average processor utilization is very low. Review processor utilization for individual processes to determine which applications and services contribute the most to total processor utilization.

Average Utilization (%) 11.25
Windows for home | Windows 10 | Sleep and Power on, off

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Anonymous
2021-12-05T02:28:57+00:00

Hi NuttanontNeti,

Welcome to Microsoft Community and thank you for sharing your concern with us today.

I understand that Seem like dptf_helper.exe is preventing my laptop to enter sleep mode. I am glad to offer you help on this issue.

Dptf_helper.exe is not essential for the Windows OS and causes relatively few problems. Dptf_helper.exe is located in a subfolder of C:\Windows\System32—common is *C:\Windows\System32\DriverStore\FileRepository\dptf_cpu.inf_amd64_4a3ae74cfa6c37d6*. The file size on Windows 10/8/7/XP is 517,512 bytes. https://www.file.net/process/dptf_helper.exe.html 
Dptf_helper.exe is not a Windows core file. It is a Microsoft signed file. The program is not visible. The file has a digital signature. Therefore the technical security rating is 12% dangerous.

If dptf_helper.exe is the problem, you can fix it by doing the following:

try running SFC and DISM to check for system errors and corrupted files. After that, restart your computer.

Right-click the Windows key,and then left-click the Windows Terminal (admin) option. Press the Enter key after each command:

Dism /Online /Cleanup-Image /CheckHealth

Dism /Online /Cleanup-Image /ScanHealth

Dism /Online /Cleanup-Image /RestoreHealth

sfc /scannow

But it's also possible that a setting you didn't turn on causes the process to prevent your computer from going into sleep mode.

There are many reasons for this.

  1. You can use the PowerShell command to see which devices wake up the computer, and try shutting them down one by one.

Right-click on the Start button (or press the Win plus X shortcut) and tap in the pop-up system shortcut menu (Windows PowerShell (Administrator)

Enter the powercfg/devicequery wake_armed to see what hardware wakes up your PC?

If a stubborn problem persists, remove unnecessary hardware and troubleshoot it.

  1. Software, driver prevent system sleep.

Modify registry closed: Press Windows + R and enter regedit. And find:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Power\AwayModeEnabled

Key value:

0, off

1, on

Without this key, create a new "DWORD 32 bit" value, named "AwayModeEnabled", and assign a value of 0.

(Disclaimer: Generally, modifying registry subkeys or work group is intended for advanced users, administrators, and IT Professionals. It can help fix some problems, however, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For further protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click here to view the article.)

If your computer system is professional, you can also customize your group policy to solve your problem.

The Local Group Policy Editor is only available in the Windows 10 Pro, Enterprise, and Education edition.

1. Open the Local Group Policy Editor. (press Windows + R and enter service.msc)

2. In the left pane of Local Group Policy Editor, navigate to the location below. (see screenshot below)

Computer Configuration\Administrative Templates\Windows Components\Portable Operating System

Image

3. In the right pane of Portable Operating System in Local Group Policy Editor, double click/tap on the Disallow standby sleep states (S1-S4) when starting from a Windows To Go workspace policy to edit it. (see screenshot above)

4. To Enable Sleep when Starting from a Windows to Go workspace

A) Select (dot) Not Configured or Disabled, click/tap on OK, and go to step 5below.

 Not Configuredis the default setting.

5. When finished, you can close the Local Group Policy Editor if you like.

Welcome to tell me if the above method is effective.

I hope the information provided is useful for you. If you have any additional questions, please do not hesitate to reach out to our support.

Best Regard,

Kevin | Microsoft Community Support Specialist

*Beware of scammers posting fake support numbers here."

*Kindly Mark and Vote this reply if it helps, as it will be beneficial to more community members reading here.

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  1. Anonymous
    2021-12-05T08:42:59+00:00

    Hi NuttanontNeti,

    I am glad I was able to help, feel free to mark the response above that contained the solution to make it easier for other customers to find the solution more quickly.”

    Best Regard,

    Kevin | Microsoft Community Support Specialist

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  2. Anonymous
    2021-12-05T07:13:39+00:00

    Hi Kevin,

    Thank you very much for your help. After I follow your suggestion and explore the system setting, I just realize that there is something call S0 stand by stated that is used instead of sleep mode in modern laptop lol. I mistake it for 'turn-off the display' mode because it acts so similar.

    I guess this S0 mode work as well, so I stop right before change the setting to enable the S1-S3 setting as you suggest.

    Best regards,

    Neti

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