mat-debug-xxxx.log files

Anonymous
2019-11-25T03:05:17+00:00

Why are these files appearing in quantity (every 15 minutes), while running Windows 10 home, in my /apps/local/temp folder? They did not appear before the last 3 days ago.

Windows for home | Windows 10 | Files, folders, and storage

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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  1. Anonymous
    2020-03-15T19:08:48+00:00

    I've found an easy way to get rid of the Localbridge.exe program that's creating these files. Download "InstalledAppView" from nirsoft.com. This allows you to easily uninstall any of the built in MS Apps. You can safely zap Localbridge in a few clicks with this (and any other pre-installed crapware that you don't need).

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  2. Anonymous
    2020-01-17T10:53:08+00:00

    This is an app called "Office hub" that gets shoved without permission on us with every update, even after Microsoft has stated that this is "fixed" and that uninstalled apps do not get re-installed on updates. Like, 3 years ago.

    The "Office Hub" comes with an executable in it called LocalBridge.

    Easy: Uninstall Office Hub.

    Medium: Get-AppxPackage Microsoft.MicrosoftOfficeHub | Remove-AppxPackage

    Hard:

    There is a folder called C:\Program Files\WindowsApps.

    It is protected. Nuke the protection (take ownership)

    In it there are several folders of the form "Microsoft.MicrosoftOfficeHub_18.1910.1283.0_x64__8wekyb3d8bbwe _etc"

    There are versions for various platforms and languages AFAICT.

    Take ownership, add permissions and delete the folders.

    Apparently, removing the app will not free the folders and the local bridge hangs around. No idea if it keep running or making logs if simply removed.

    I have gotten the habit of rummaging in there repeatedly because Microsoft Store seems unable to do a reinstall - it keep stuff in there and some apps just crash or hang on update until you delete and install fresh.

    Do try to be careful.

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  3. Anonymous
    2020-06-15T21:22:22+00:00

    I solved the annoying problem with mat-debug-xxxx.log files for me using the commands:

    Get-AppxProvisionedPackage -Online | Where-Object {$_.PackageName -Like "Microsoft.MicrosoftOfficeHub"} | ForEach-Object { Remove-AppxProvisionedPackage -Online -PackageName $_.PackageName}

    Get-AppxPackage Microsoft.MicrosoftOfficeHub | Remove-AppxPackage

    See: https://docs.microsoft.com/en-us/windows/privacy/manage-connections-from-windows-operating-system-components-to-microsoft-services

    In my case the files in tmp folder were created by the program:

    C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_18.2005.1191.0_x64__8wekyb3d8bbwe\LocalBridge.exe

    Found by Sysinternals' Procmon.

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  4. Anonymous
    2019-11-25T03:57:38+00:00

    Hi Richspacenuke,

    Do you have any Onedrive app running in background? if so can you try to disable it then check if problem still persist.

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  5. Anonymous
    2019-11-25T03:23:10+00:00

    I do not have Office 365. I only have Office 2010. I have not changed any settings or added any accounts so far as I know. I only want to know specifically what a mat-debug file is related to in terms of applications and how to disable filling up my temp. folder with these 0 byte files during the time I am operating this computer.

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