1 How to get a free Windows 10 upgrade for Windows 7 or Windows 8. In particular, Windows has its own boot loader and Linux uses GRUB.Manufacturer Models Boot Menu Key Bios Key Acer: Aspire One zg5, zg8, Aspire Timeline: F12: F2: Acer: Aspire v3, v5, v7: F12 ('F12 Boot Menu' must be enabled in BIOS).Through the Advanced boot options menu, you can access some handy troubleshooting tools like booting into Safe Mode, starting Windows with the last known good configuration, etc. 3 In the Windows Boot Manager section at the top, the displayorder item will show you a list of boot loader entries referenced by their identifier (ex: ' timeout 30.RECOMMENDED: Download PC Repair tool to quickly find and fix RECOMMENDED: Download PC Repair tool to quickly find and fix List of Boot Menu Hot-Keys In this article, you'll find out what keyboard key you'll need to press in order to access your computer's boot menu or BIOS menu. If it’s not possible, use a different If your dual boot system does not show the operating system selection menu or the Windows Boot Manager while booting up, you are not alone.