Windows 10: The NPF or NPCAP service is not installed, please install Winpcap or Npcap and reboot.

Discus and support The NPF or NPCAP service is not installed, please install Winpcap or Npcap and reboot. in Windows 10 Drivers and Hardware to solve the problem; The NPF or NPCAP service is not installed, please install Winpcap or Npcap and reboot.... Discussion in 'Windows 10 Drivers and Hardware' started by readingspow writingpower, Aug 11, 2024.

  1. READINGSPOW WRITINGPOWER
    readingspow writingpower Win User

    The NPF or NPCAP service is not installed, please install Winpcap or Npcap and reboot.


    The NPF or NPCAP service is not installed, please install Winpcap or Npcap and reboot.

    :)
     
    readingspow writingpower, Aug 11, 2024
    #1
  2. AYORINDEWILLIAMS
    AyorindeWilliams Win User

    Npcap

    Hello. I tried installing the Nmcap setup(the latest release). Well, it did but a particular installation(nmcap installer 0.98) refused to cooperate. The issue was during the installation, it gets to a point and says " Uinstalling WinPcap, if you are prompted
    to reboot, choose ' I want to manually reboot later' or Npcap installation will fail". And poof! Once I click ok it says Installation not successful. I really don't know what else to do. Besides, I do not have Winpcap installed on my laptop. Please kindly
    get back to me ASAP! Thanks.
     
    AyorindeWilliams, Aug 11, 2024
    #2
  3. USER1561358
    user1561358 Win User
    Installing Npcap on Windows 10

    Recently, after prompt initiated update, the Wireshark could no longer detect my ethernet interfaces, leaving only USBs on the list.

    Since problems persisted after reboot I decided to reinstall Wireshark with all the same options. The situation didn't improve, at which point begun to suspect the driver.

    Quick check gave me conflicting information.

    So apprentlly, the service was present, but couldn't start, because relevant file was missing. With Wireshark still coming up empty, I decided to uninstall npcap also, and start with a clean slate.

    Unfortunately, uninstalling Npcap turned out to be harder than I thought, failing and producing following log:

    Npcap. Device manager also detected the Npcap loopback interface.

    So the driver service wasn't running but apparently some vestige of it remained. As a test, I tried to reinstall Wireshark, along with Npcap.

    To my surprise, the Wireshark detected Npcap (of appropriate version) and didn't let me install it again.

    And finally, I checked the:

    To see if the relevant files are present, only to find both of them.

    This is all the more vexing, because I have the same version running on my laptop. I don't know where to go from here.
     
    user1561358, Aug 11, 2024
    #3
  4. HUYNGUYễN ĐứC1
    HuyNguyễn Đức1 Win User

    The NPF or NPCAP service is not installed, please install Winpcap or Npcap and reboot.

    unable to install npcap: failed to create the npcap service: 0x80070005

    I am having an error with installing npcap 1.6 with my window 10 laptop. As suggested, I tried to reinstall the installer (1.6) many times but none worked. Here was what I had:


    The NPF or NPCAP service is not installed, please install Winpcap or Npcap and reboot. 45c5d45f-fff5-4c06-afa9-3765bd4e6aa0?upload=true.png


    How can I fix this error? Thank you, Huy Nguyen.
     
    HuyNguyễn Đức1, Aug 11, 2024
    #4
Thema:

The NPF or NPCAP service is not installed, please install Winpcap or Npcap and reboot.

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