Open File Explorer. Browse and find the file or folder you want full access to. Right-click it, and select 'Properties'. Click the 'Security' tab to access the NTFS permissions. Click the 'Advanced' button. On the Select User or Group page, click 'Find Now'. Then select your user account and click 'OK'. On the Select User or Group page, click 'OK'. Click 'Apply', then click 'OK'.