takeown to take ownership of the file
takeown /r /d y /f *
^ Recursively takes ownership of all files without prompting “are you sure”.
Follow it up with
icacls set the access control list
icacls * /grant Everyone:F /t /c /q
This will recursively grant Full access to user group “Everyone” to all files in the folder.
the current logged on user does not have ownership privileges on the file (or folder)
Make sure your command prompt is elevated, otherwise it won’t have admin rights even though you are an “admin”.
To open an elevated command prompt, search for cmd in your start menu and press CTRL + SHIFT + ENTER or right click on it and choose Run as administrator.
Confirm it is elevated by looking for “Administrator:” prefixed to the window title.
TAKEOWN /F <DIRECTORY> /R /D Y