Windows 10: Accidentally deleted c drive's "Authenticated User" and "SYSTEM" and set drive's permission...

I have Accidentally deleted c drive's "Authenticated User" and "SYSTEM" and set drive's permission to write only and now if I try to change permissions it prompt "access denied". Here I am attaching screenshots of drives' properties dialogue.

:)

 

how to delete file on c drive? need permission

i accidently save something to c drive. when i try to delete it says need admin permission. how do i delete it?

i am on a computer that dont have any account only 1 and thats me. main one is me. 1 account.

 

authenticated users issue in win 7

hi, i just messed up authenticated users permissions on my my data drive (d drive) in win 7 ultimate while learning. I wanna restore it to default authenticated user permissions. i have three partitions. 1: System (win7:c), 2: Data (d), 3: Second System (win 7: e). I got two accounts: 1 default windows admin account created during installation. 2 standard user account that I created myself after. I messed up the permissions from standard user account. I was supposed to change it for user account.

At this stage I just want to know what are the default authenticated users permissions in win 7 for data drive??????????

any help would be much appreciated.

thanks

 

How to restore “special permissions” for Authenticated Users

So what I did was:

• Opened file explorer
  
• Right clicked on the D drive, aka Data (D
  
• Clicked permissions
  
• Clicked security
  
• Clicked edit
  
• Deleted the “Authenticated Users”
  
• And clicked apply
  

When I restored the Authenticated Users profile, the last box labeled “Special permissions” is grayed out. How do I turn it on?