As soon as you boot your computer, press F2. This is for Acer machines. If not press "Pause" on your keyboard right when you see the POST Screen or Acer screen and look for any info that tells you what to press to enter the BIOS.
Acer is proud to announce the promotion of Philetus to the ACE team. Philetus has been a member since March 2013 and has shown the skills and patience required to be a member of this exclusive, invite only team of experts. Congratulations Philetus!