Windows 10: Revert SystemData folder permissions

Can someone please help me revert the SystemData folder permissions to default ones?

C:\ProgramData\Microsoft\Windows\SystemData

I took ownership of the folder and removed certain principals afterwards because I was not sure they were there by default. While removing them some errors popped up.

I attached a screenshot of the current state.

Does anyone at least know how should the default state look like? Who are the default principals?

Thanks.

:)

 

SystemData folder, Can't set this one as lock screen image

The issue still persists even after creating a new admin account. I only deleted the SystemData folder following steps to fix the grey loading screen problem from this post.
However the SystemData folder did not recreate istelf and the registry key did not re-populate.

 

Restore Security Permissions

Hello Deepak,

Thank you for posting in Microsoft Community.

I understand that you have cancelled the security permissions while setting it to folders and you are trying to restore back. We will help you.

• Which folder are you trying to set the permissions?
• What are you referring to " files is affected "?

I suggest you to follow the below steps and check if it helps.

• Open the file explorer and select the destination folder
  for which you wanted to revert back the permission changes.
• Right click on the folder. Select the Previous versions
  tab.
• Select the previous version in the below list and click
  apply.
• Check if the issue persists.

Keep us posted to help you better.

 

Understanding 'Access Denied' so that permissions can be reverted - icacls and takeown

• Before taking ownership of files and folders I would like to understand how to view the current permissions so that they may be reverted.
  
• I am reciving an 'Access Denied' message to view or save permissions with elevated command prompt for location: C:\ProgramData\Microsoft\Windows\SystemData in Windows 10 enviroment.
  
• It looks like that I may need to take ownership first, then can view the permissions, and use something like icacls 'reset' command to fix it afterwards.
  

If I try to view permissions:

If I try to save an ACL file:

In the answer to 'Understanding how to use Icals & Takeown' the owner of the folder was NT SERVICE\TrustedInstaller which may infact may be a standard in Windows 10, though I am only guessing.

Should I just use takeown, and icals, find out the permissions and then use the reset command.

Likewise with the ACL, one would need to take ownership before creating, or is there a work around?

Reading:

• SU - Understanding how to use Icals & Takeown to make changes and reset in Windows 10
  
• SU - Create List of Access Denied Files & Folders
  
• SU - Setting Deny Permissions with ICACLS on “This Folder”
  
• SU - Is there a way in which I can use takeown to apply ownership to every directory on the drive?
  
• SU - Takeown grant permission
  
• SU Can I revert changes from the TAKEOWN and ICACLS commands?
  
• Howtogeek - Reverse take ownership
  
• Faqforge - Take Ownership of a File or Folder by Command in Windows
  
• Microsoft - ICACLS setowner and GRANT operation appears to be causing some existing perms on subfolders to be removed. Why
  
• Itprotoday - Removing a User or Group’s Permissions
  
• SS46 - Takeown
  
• SS64 - Icacls