I installed Ubuntu 14.04 onto my Acer Aspire E15. The PC has a 500 Gigabyte HDD.
During the installation it divided the HDD into separate partitions. However every time I turn on the PC it goes directly into Windows 8.1. It doesn't allow you the opportunity to select which OS you want to use.
Question 1: How do I set the PC so it will allow me to select the OS?
Question 2: And if #1 isn't possible. How to I remove Ubuntu from the PC and recover the partition for Windows
Best Answer
Recently, I bought an Acer Aspire ES1-512 for a college course. As it happens this course requires the students to use Ubuntu. After several unsuccessful attempts to install Ubuntu alongside Windows. I believe I have an answer that allows you to install Ubuntu 14.04.2 alongside Windows 8.1 on an Acer Aspire ES1-512.
Some of the steps are from memory, so if something doesn't work please let me know.
Steps for Installing Ubuntu:
For stealth reasons you can let your laptop default boot into Windows, but if you need Ubuntu when you power on the Laptop press the F12 key repeatedly until the "Boot Manager's" window opens. There should be two options.
To boot Ubuntu highlight the grubx64efi and press Enter. For Windows highlight Windows Boot Manager and press Enter.