how to prevent "you'll need to provide administrator premission to copy to this folder" message
when i try to copy or delete file from c:\ in Windows-8 ?
i have administrator user and i try to give full control to c:\
Windows is asking you for administrator rights because only an administrator has the right to copy or delete files in that directory.
For security reasons, it is best to not copy or delete files into that directory.
But if you really must, You can edit the permissions in that directory to allow non-administrator access. But make sure to NOT make those non-administrator rights inheritable because that would expose all sub-directories to security risks.
In your specific situation, this is how you do it:
Disable UAC or set it to a lower level. Restart PC and then check.
Or you can open msconfig from Run menu - tools - Change UAC settings.