Windows 10: null process as System Service AarSvc

Discus and support null process as System Service AarSvc in Windows 10 BSOD Crashes and Debugging to solve the problem; Hello! I'm facing an issue. Every time I boot my PC, after a couple of seconds, system starts a "null" process unnamed service host.I tried to check... Discussion in 'Windows 10 BSOD Crashes and Debugging' started by active.spideyCmd.UserName, May 13, 2022.

  1. ACTIVE.SPIDEYCMD.USERNAME
    active.spideyCmd.UserName Win User

    null process as System Service AarSvc


    Hello! I'm facing an issue. Every time I boot my PC, after a couple of seconds, system starts a "null" process unnamed service host.I tried to check the Task Manager and I see that runs "AarSvc" service. After a second, the unnamed process disappear. Is this a Bitcoin miner, malware or part of the system?

    :)
     
    active.spideyCmd.UserName, May 13, 2022
    #1
  2. YANISLUKES
    YanisLukes Win User

    How does one run a "Null service"? (missing /dev/null)

    I have a problem with Git version control for windows called "Git for Windows". Whenever the git executable is run, it throws the following error:

    fatal: open /dev/null or dup failed: No such file or directory

    Also tried the following:

    >echo hello > nul

    The system cannot find the file specified.

    Firstly, /dev/null sounds like a Unix/Linux term. What is /dev/null in case of Windows? Secondly, it worked before, so an Windows Update might have broken it.

    A user who had a similar problem fixed it by: "The problem was that the Null service was not running on my machine and had to edit the registry to get it working properly again..."

    Here is what I have under key:

    Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\DOS Devices\Nul

    \Device\Null

    What specifically has to be changed in the registry? Is the Null service in Services?
     
    YanisLukes, May 13, 2022
    #2
  3. GNJHA
    GNJha Win User
    Boot Process

    Hi,

    Please suggest me a link that can explain the boot process step by step of ...

    • Windows 7,
    • Windows 8.1,
    • Windows 10,
    • Windows Server 2008 R2 and
    • Windows Server 2012 R2

    With Regards

    InTech
     
    GNJha, May 13, 2022
    #3
  4. JOSEF BRI
    Josef Bri Win User

    null process as System Service AarSvc

    Process called "System" using 10+ % of my CPU please help !

    Hi,

    Thank you for letting us know.

    ntoskrnl.exe is an operating system kernel. It is a fundamental part of the system. However, there are parts of it that might be hogging usage on your system.

    What we suggest is disabling a few system services running on the background. Follow the steps below:

    • Press Window key + R and type in services.msc
    • The services window will popup. Now a few service task will appear, locate
      Superfetch       service, double-click on it and select Properties.
    • Once the Properties window comes up, under the General tab, find the section that says,
      Service status. There should be a Stop button. Click on it.
    • Close all windows Services,
    • Restart the PC.

    Do check your Task Manager if the same system (ntoskrnl.exe) process appears again.

    Looking forward to your response.
     
    Josef Bri, May 13, 2022
    #4
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null process as System Service AarSvc

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