This is the third time I've tried to install Ubuntu Server 14.04.03 64-bit on the same laptop, and each time it caused different problems.
Each time I wrote the same iso image to a USB flash drive by using a different application and OS.
- Universal USB Installer (pendrivelinux.com) from Windows
- WinImage writer from Windows
- built-in image writer from Linux Mint 17.2
The iso image is the same in all three cases, the USB flash drive is the same, and the laptop is the same. However each time the installation of Ubuntu gave me different installation options. For example, the last time I installed Ubuntu, it didn't show all the packages to choose while installing (Basic Ubuntu server, etc.).