Back to the home page
Do you want to install Ubuntu or Linux Mint next to Windows 8.x or 10, in order to create a dual boot computer? Then first you have to change some settings in Windows 8.x or 10, and when you have a pre-installed Windows 8.x or 10, also in the UEFI ("BIOS"). As follows:
By disabling Fast Startup a shutdown becomes a real shutdown again, which makes the Windows partition on your hard disk, accessible and resizable by Ubuntu or Linux Mint.
Disable Fast Startup like this:
a. Control Panel - Power Options - Choose what the power buttons do
b. Now click on Change settings that are currently unavailable. See the screenshot below (click on it to enlarge it):
c. Now remove the tick for Turn on fast startup (recommended), even though this bothersome feature is supposedly "recommended". See the screenshot below (click on it to enlarge it):
d. Click on Save changes.
e. Reboot your computer. Don't shut it down! It has to be a reboot, in order to make this settings change permanent.
If you have an older computer which was originally sold with a pre-installed Windows 7, Vista or XP (which means old-fashioned BIOS): you're done! You can continue with the actual installation of Linux Mint or the installation of Ubuntu.
But if your computer was sold with a pre-installed Windows 8.x or 10 (which means modern UEFI), please read on.
For an Acer, you have to press the F2 key a couple of times, directly after turning on the computer.
Can't you succeed in accessing the UEFI configuration? Then you can also evoke it from within Windows 10, in an annoyingly cumbersome way (the procedure in Windows 8.x is almost identical):
Click on the magnifier icon in the panel of Windows 10 - let it search your system ("Search Windows") with the term settings
Click on the first (preselected) result, namely the app Settings
Then: Update & security - Recovery - Advanced startup - Restart now
Then: Troubleshoot - Advanced options - UEFI Firmware Settings - Restart
Finally, at very long last (sigh....) you should now be able to access the UEFI configuration.
Note: in some cases, you need to set an administrator password in the UEFI before you can disable Secure Boot.
See the screenshot below, of the UEFI of an Acer TravelMate laptop (click on the picture to enlarge it):
(continued in the column on the right)
This website is being sponsored by Google Ads.
Are you using an ad blocker? Then you're also blocking my earnings from advertisements....
If you wish to support my website, you can configure your ad blocker to make an exception for this website.
Thanks in advance....
Save and exit.
You should find this option in each UEFI, usually in the Boot section. ASUS calls it "Launch CSM".
First try it without CSM, because in a few cases CSM creates problems of its own. So only do this when necessary.
That's it! Now you can create a dual boot with Linux Mint or create a dual boot with Ubuntu.
In those cases, you can still boot Windows 8.x or 10 by using the key for one-time changes in the boot priority order (for Acer: F12). That way, you bypass Grub entirely and you can boot Windows 8.x or 10 directly from the UEFI.
In that one-time UEFI boot menu, select Windows Boot manager. See the screenshot below of an Acer laptop (click on the picture to enlarge it):
Now Windows 8.x or 10 will boot normally.
To the content of this website applies a Creative Commons license.