Occasionally when working in Windows you’ll get error messages saying that you can’t do certain things unless you make your account an administrator.
To do this, you need to actually go into the settings for your login. Open the Start menu, and then open the picture at the top of the menu that represents your login.
There, you’ll be able to select your account. Once you’re there, select the option to make your account an administrator account.
Once you do so, you’ll have more authority to open and copy files.