1. Joined : Jun 2015
    Posts : 54
    Windows 10 Pro
       12 Oct 2016 #1

    Trying to stop low disk space warning via regedit: need permission


    My system drive has a lot of free space on it. I have a scratch disk which is full of cache for a video editing program. It's always going to be full for as long as I have any videos that I'm editing. I would like Windows to stop telling me that the disk is full; Windows has no business on that drive; there is nothing there but video cache.

    My search has led me to this thread with the following instructions: Windows 10 - disable the low disk space warning? - Microsoft Insider Previews - Neowin Forums

    Login as "Administrator" LowDiskMinimumMBytes DWORD 0 --> HKEY_LOCAL_MACHINE\Software\Microsoft\Windows Search\Gather

    Then

    HKEY_LOCAL_MACHINE\Software\Microsoft\Windows Search\Gathering Manager

    take ownership of "Gathering Manager" and assign the ACL rights for the local administrator account (NOT a user account). Modify "BackOffLowDiskThresholdMB" set to 0x00 (0)

    (Recommended)

    Restore ownership and ACL to the way they were. Not required,.

    Ensure that your NoLowDiskSpaceChecks value is DWORD and not string or another type: HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoLowDiskSpaceChecks = DWORD 0x01
    I cannot follow the instructions due to a permissions issue. I ran regedit.exe as administrator to gain elevated permissions but the write access for the key HKEY_LOCAL_MACHINE\Software\Microsoft\Windows Search\Gather is granted only to TrustedInstaller and WSearch while SYSTEM has "special permissions". Administrators and Users have Read only permission. The ownership is given as TrustedInstaller.

    How can I edit this key? Thanks.
      My System SpecsSystem Spec


  2. Joined : Aug 2016
    S/E England
    Posts : 820
    10 Home x64 (1607), Pro x86 (1511)
       12 Oct 2016 #2

    THX1138 said: View Post
    I cannot follow the instructions due to a permissions issue. I ran regedit.exe as administrator to gain elevated permissions but the write access for the key HKEY_LOCAL_MACHINE\Software\Microsoft\Windows Search\Gather is granted only to TrustedInstaller and WSearch while SYSTEM has "special permissions". Administrators and Users have Read only permission. The ownership is given as TrustedInstaller.

    How can I edit this key?
    Your are prevented from editing such keys for good reason - to protect you from yourself. Be VERY careful how you use the following guidance. Best to make a restore point before you start, or even a system image.

    You need to take ownership, add your user account with full access then edit the key. Then undo the permissions changes, removing yourself and making TrustedInstaller the owner again. Start by clicking the 'Advanced' button in 'Permissions'.

    NB: to make TrustedInstaller the owner again you have to be able to find it first. Type its full name:
    NT Service\TrustedInstaller
    and click the 'check names' button.
      My System SpecsSystem Spec


  3. Joined : Jun 2015
    Posts : 54
    Windows 10 Pro
       12 Oct 2016 #3

    Bree said: View Post
    Your are prevented from editing such keys for good reason - to protect you from yourself. Be VERY careful how you use the following guidance. Best to make a restore point before you start, or even a system image.

    You need to take ownership, add your user account with full access then edit the key. Then undo the permissions changes, removing yourself and making TrustedInstaller the owner again. Start by clicking the 'Advanced' button in 'Permissions'.

    NB: to make TrustedInstaller the owner again you have to be able to find it first. Type its full name:
    NT Service\TrustedInstaller
    and click the 'check names' button.
    Thanks for the advice. I don't think I have an account on the computer - previously I had an account with my name but this is a new installation on a more or less new computer and I think my account is a Microsoft account which doesn't appear to be stored locally. I tried setting the ownership to administrators, having started Regedit.exe as administrator and while the ownership did transfer I get an error message when trying to change the permission to full:
    Windows Security
    Unable to save permission changes on Gather.
    Access is denied.
    When I tried to give ownership back, Windows denied the existence of TrustedInstaller! I used system restore to return ownership.



    Edit: There's information in the thread I linked which might cover this. I'll try it later. Windows has already stopped giving the low disk space warning for some reason.
    Last edited by THX1138; 13 Oct 2016 at 00:34.
      My System SpecsSystem Spec


 


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