Windows 10: How do I reset my permissions so I can open files again?

I tried to give myself access to microsoft folders on my pc so I changed my permission settings from this youtube video but now I can't even open a single file. it just says "the parameter is incorrect" now I'm aware that parameters and such are like the routing of files from hard drives but I don't know how to safely revert back to my old settings without completely resetting my PC and all of its settings. What should I do?

:)

 

Reset Windows 10 file permissions to default

Hi,

Welcome to Microsoft Community and thank you for your interest in Windows 10.

• Are you receiving any error message while accessing any files?

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

Method 1: Startup troubleshooter.

• Open the Task manager. Here’s a tip: Press CTRL+Shift+ESC.
  
• Click File > Run New Task
• Make sure you have a check mark beside “Create this task with administrative privileges”
• Type Powershell
• Type the following in the Powershell prompt:

$manifest = (Get-AppxPackage Microsoft.WindowsStore).InstallLocation + '\AppxManifest.xml' ; Add-AppxPackage -DisableDevelopmentMode -Register $manifest


6. Close the Powershell window

7. Reboot

Method 2: If you are facing issues accessing files, then I suggest you to follow the below steps and check if it helps.

This may be caused by incorrect permissions on the files.

You can fix this using these steps:

• Open the properties of the main user profile folder where the files are located (such as Documents, Pictures, etc).
  
• 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

Hope this information was helpful and do let us know if you need further assistance. We will be glad to assist.

 

Folder won't open due to permission issue

Hello,

Thank you for posting your query on Microsoft community. I understand your concern. Let me help you.

I suggest you to sign out from the current account, restart the computer and log in with Administrators account and

check if it helps to resolve the issue.

I suggest you to refer to the steps below and check if it helps to resolve the issue.

• 
  Press and hold or right-click the file or folder, and then click
  Properties.
  
• 
  Tap or click the Security tab.
  
• 
  Under Group or user names, tap or click your name to see the permissions that you have.
  
  To open a file, you have to have the Read permission. To change the permissions of a file or folder, follow these steps.
  
  Important you must be logged on as an administrator to change permissions on files and folders.
  

• 
  Press and hold or right-click the file or folder, and then tap or click
  Properties.
  
• 
  Tap or click the Security tab.
  
• 
  Under Group or user names, tap or click your name to see the permissions that you have.
  
• 
  Tap or click Edit, tap or click your name, select the check boxes for the permissions that you must have, and then click
  OK.
  

Hope this helps. If the issue remains unresolved, please get back to us with more information and we’d be happy to help.

 

No permissions

Hi,

I would suggest you to right click on the user's folder for your profile and check if the permissions shows as "read only'. If this is the case, it might be causing the issue. In this case, I would suggest you to go to C:\User folder, right click on the
folder with your username and follow these steps:

• Open the properties of the main user profile folder where the files are located (such as Documents, Pictures, etc).
  
• 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 does a one-time action that replaces the security on all the files/subfolders. It’s one-time, so you won’t find that box checked if you peek at it later. Try these steps and let us know the results for further assistance.