Every file and folder in Windows has permissions that control who can read, modify or delete it. A standard user can usually change permissions only for items they own, while an administrator can manage permissions more broadly.
Change permissions carefully. Removing access from the wrong account can prevent an application—or even you—from opening important files.
How to change file or folder permissions in Windows
- In File Explorer, select the file or folder you want to manage.
- Right-click it and choose Properties.
- Open the Security tab.
- Select a user or group to review its current permissions.
- Choose Edit. If Windows asks for administrator approval, confirm only if you understand and trust the change.
- Select the relevant Allow or Deny boxes, then choose Apply and OK.
Understanding common permissions
- Read: view the file or folder and its contents.
- Write: create or change content.
- Modify: read, edit and delete.
- Full control: manage all permissions, including changing ownership in some contexts.
Avoid using Deny unless necessary because it can override permissions granted elsewhere. Prefer giving a specific account only the access it needs.
If the Edit button is unavailable
You may not own the item, your account may lack administrator rights, or the file may inherit permissions from its parent folder. In business environments, organisation policies can also prevent local changes. Ask the system administrator before changing ownership or inherited permissions.
That’s it—your selected permissions will take effect after you apply the changes. See you soon for another Youpi tip.