Windows requires permissions for actions you perform on your computer. But it’s your computer, isn’t it? So, why do you need permission to access certain files and folders? There are several related answers.
Windows want to protect you from accessing certain files because changing them can damage the operating system. Therefore, if your Windows user account does not have the right permissions, you will not be able to access certain files or folders.
In this case, you will get an error message “You must have permission to perform this action“. This is frustrating, of course. But here are some very effective solutions to fix this error.