Hi I got new hard disk and formatted and partitioned it. I made OS installer in USB. I am getting the below error when I am installing "This copy of the install os x EI Capitan application can't be verified. It may have been corrupted " I read some tech notes to set the date. I did that as well. Its going through till "About a second remaining" and then getting the above error message after 20 min. I tried with following options 1) while booting up hold option key - Did not work. Same error 2) while booting command + option + P + R did not work either. I am using macbook pro mid 2010. Any suggestion or help on this to install OS on my new hard drive?