![Amazon.com: MacOS OSX Installer 10.11 El Capitan on 16gb USB Bootable Drive - System Recovery Kit (Install, Re Install, Fresh Install, Upgrade) Amazon.com: MacOS OSX Installer 10.11 El Capitan on 16gb USB Bootable Drive - System Recovery Kit (Install, Re Install, Fresh Install, Upgrade)](https://m.media-amazon.com/images/I/61Il+zBkJDL._AC_SL1315_.jpg)
Amazon.com: MacOS OSX Installer 10.11 El Capitan on 16gb USB Bootable Drive - System Recovery Kit (Install, Re Install, Fresh Install, Upgrade)
![This copy of the Install OS X El Capitan application can't be verified. It may have been corrupted or tampered with during downloading - Ask Different This copy of the Install OS X El Capitan application can't be verified. It may have been corrupted or tampered with during downloading - Ask Different](https://i.stack.imgur.com/E1BMF.png)
This copy of the Install OS X El Capitan application can't be verified. It may have been corrupted or tampered with during downloading - Ask Different
![Installing macOS or OS X: What to do when 'the installer payload failed signature check' or 'this copy of the install OS X application cannot be verified' Installing macOS or OS X: What to do when 'the installer payload failed signature check' or 'this copy of the install OS X application cannot be verified'](https://cms-images.idgesg.net/images/article/2016/07/osx-boot-install-error-100672670-orig.png)