Denied Access

I recently used my external hard drive which I have not used in a year and gave me that error code Hard drive Access denied, I was able to fix it, get in the drive but now every folder and file needs a change in permission manually, is there a way that I can change all of it in one go? There's...

I have a: Gigabyte GTX 770 - Idle temp: 46-47 degrees celsius. - Not overclocked i7-3770k - Idle temp: N/A - Not overclocked 1920x1080 HD Display 1280x1024 Display 1280x1024 Display I was wondering if it is normal for this graphics card to idle at that temp? Under full load the GPU temp goes...