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Windows 7: SOLVED: TrustedInstaller, Access Denied, Permissions, Change Ownership

19 Aug 2017   #1

Windows 7 Home Premium x64
SOLVED: TrustedInstaller, Access Denied, Permissions, Change Ownership

This thread is related to, How to remove trustedinstaller Solved - Windows 7 Help Forums, which did not solve the TrustedInstaller, Access denied, permissions issue for me. However, I did over come the problem, and wanted to pass on what I did for others to use.

Below, my actions to regain control of a directory (inappropriately) commandeered by the TrustedInstaller.

I believe it was the takeown and icacls commands that ultimately did the trick, but just in case someone else's situation is different, here’s a log of what I did,

Dir name in question: \tmp\test_extracted. # Yours will be whatever directory you're being blocked from accessing
NOTE For the past few months, within Windows Explorer, anytime I attempt to create a new folder and rename it, I encounter the following dialog,
Item Not Found
Cannot find this item
This is no longer located in <drive>:<dir>. Verify the item’s location and try again.
<folder name>
Date created: <mm>/<dd>/<ccyy> <HH>:<MM>

[Try Again] [Cancel] buttons

Clicking [Try Again] accepts the new name for the folder.

Investigating, I found info about 8dot3 tilde short filenames. Regardless, it’s wonky.
  1. I tried the Take Ownership rigmarole described here, Windows trusted installer denying access to files - Microsoft Community, and attempted many variations,
  • Change owner (including subcontainers and objects), assigned my user, granted Full Control. Attempt delete of dir,
  • Change owner (including subcontainers and objects), assigned Admin users., granted Full Control.
  • Logged in as built-in admin, assigned, granted.
  • Reboot in between assignments and grants.
  • Rebooted into Safe Mode between assignments and grants.
2. Removed the top-level dir (tmp) from Windows Search Indexing
  • Start menu
  • Searched for: index options text entered into search textbox
  • Clicked Index Options in search results
  • Clicked Modify button
  • Within listbox (top of dialog) expanded the C drive clicked plus sign , found tmp, and de-selected it checkbox
  • Clicked OK button
  • Rebooted machine
    No change
3. Made sure TrustedInstaller service was running it was not running on my machine (deliberate on my part)
  • Launched cmd.exe with admin privilege
  • command: net start TrustedInstaller
IMPORTANT TrustedInstaller is the service name. Windows Module Installer is the display name (human consumption).
net start won’t know what to do with the display name, must use service name.
No change
4. Logged in as Administrator. Assigned ownership from TrustedInstaller to local Administrators group,
takeown  /f  c:\tmp\test_extracted  /r  /d  y

  Explanation of options,
      /f       <Name of dir/file>
      /r       Recurse subdirectories
      /d  y    /default answer to /r  is  yes
5. Assigned Full Control to local Administrators group
icacls  c:\tmp\test_extracted  /grant  Administrators:F  /t  /q

  Explanation of options,

      /grant   permission(s) to Windows Group, Administrators
      :F       Grant Full Control
      /t       Grant access to directory and subdirectories
      /q       Process quietly, don't show success/fail messages
6. In the end, I did not use Windows Explorer to remove the directory, I used the command line,
rmdir /s \tmp\test_extracted
Comment About Post In Prior Thread How to remove trustedinstaller Solved - Windows 7 Help Forums

LukeDouglas doesn't need to explain anything; the expectation that a human-being has full control of their personal property at any given moment is a reasonable (and protected) expectation in the US; the unTrusted INStAller over-stepped its bounds.

Long before I created \tmp\test_extracted, and encountered this issue, the TrustedInstaller service was disabled on my machine. How (and when) did TrustedInstaller gain access to a directory that has nothing to do with the OS system directory C:\Windows or the directories managing executable files (C:\Program Files (x86) or C:\Program Files)?

We’re told, “Don’t mess with TrustedInstaller or your system may become unstable.”

Wondering out loud, does Windows have a subsystem with so many vines growing out of it that no one, including its creators, truly understands what it does anymore, so we're all told to just leave it alone?

Given my situation, I should not have gotten tangled up in a permissions issue, particularly involving the unTrusted INStAller.

My System SpecsSystem Spec

 SOLVED: TrustedInstaller, Access Denied, Permissions, Change Ownership

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