For the first time in my Life I am installing an OS. I installed it properly using a USB. After the installation, it asked to restart. On restarting, two things are happening:
I restart with the pendrive It is asking me to select one of the four options-
Try Ubuntu without installation Install Ubuntu OEM install (for manufacturers) Check disk for defectsI restart without the pendrive It says-
PXE-E61: Media test failure, check cable PXE-M0F: Reboot and Select proper Boot device.
Please help!!

Try Ubuntu without installation, clickTry Ubuntu, and open a terminal, and runsudo fdisk -l. Please then add the output to your question. – Wilf Jan 7 '14 at 16:31