Windows 10: NTFS Permissions BUILTIN\Users:C - still can't modify file

Skills once mastered fade when they remain unused for a while. Can anyone remind me why this doesn't work?I've set the permissions on File.txt for users to be able to modify, but it still seems that a standard user still can't modify the file.C:\>cacls File.txt C:\File.txt APPLICATION PACKAGE AUTHORITY\ALL APPLICATION PACKAGES:C NT AUTHORITY\SYSTEM:F BUILTIN\Administrators:F BUILTIN\Users:C C:\>echo xx >> File.txt Access is denied.Thanks,Joe

:)

 

xp ntfs permissions erased - help!

NEVER, ever, remove FULL CONTROL permissions in the Access Control Lists/rights priveleges from:

• Administators Group

• YOUR local Administrator User

• SYSTEM

on NTFS rights on your disks (via Explorer.exe rightclick properties menu, security tab) that use that filesystem, OR in the REGISTRY either, via rightclick on HIVES/KEYS permissions popup menu options...

(Sure way to lock yourself out, period, & I have done it myself early on w/ NTFS filesystems &/or the Registry before... only way to learn sometimes, is making mistakes!)

* Keep this in mind, those of you that start experimenting w/ security @ these 2 levels!

APK

P.S.=> Leaving them @ FULL POWER, in both areas, usually 9/10 times allows you to get back into your rig (logging on as your LOCAL ADMINISTRATOR USER, to fix it), & make alterations to rights/acl's as needed, to "get it right", eventually... especially when you're still learning/experimenting! apk

 

How to restore default security permissions for C drive

Hello,

Thank you for posting your query in Microsoft Community.

I understand you concern in this regard.

In Windows, access control lists (ACLs) give you extremely fine control over the ability of users and processes to use resources such as
files and folders. Managing ACLs can be one of the more complicated tasks related to protecting the security of your users’ systems.

Suggest you to try the below mentioned steps and check if it helps.

• 
  Open the properties of the main
  User Profile (I.e. C:\Users\...)
  folder where the files are located (such as Documents, Pictures, etc.). You can open the properties of a particular folder by
  Right-clicking on it and select Properties from context menu.
  
• 
  Go to the Security tab and click
  Advanced.
  
• 
  Check the box at the bottom of this window. It is labeled "Replace all child object permissions with inheritable permissions from this object" and then click
  Ok.
  

This action will replaces the security permission on all the files/subfolders. It’s one-time, so you won’t find that box checked if you peek at it later. Please let us know if it’s working

Do refer the article on
Back Up and Restore NTFS and Share Permissions and see if it helps you.

Warning: Some steps in the article tell you to modify registry. Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you
reinstall the operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk.

Keep us posted if you require further assistance.

 

Default group permissions for ProgramData folder?

Here are the User permissions I have in my Windows 10 Home Explorer for Program Data:

CREATOR OWNER - Allow Special Permissions

SYSTEM - Allow Full control, Modify, Read & Execute, List folder contents, Read, Write

Administrators - Same as System

Users - Read & Execute, List folder contents, Read, Special Permissions

There are also default Windows 10 NTFS file permissions here:

https://winaero.com/reset-ntfs-permissions-wind...

https://www.winhelponline.com/blog/reset-ntfs-p...

https://droidrant.com/how-do-i-reset-my-permiss...

Report back results for each step so I know what else to suggest.

Feel free to ask back any questions. Based on the results you post back I may have other suggestions if necessary.

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