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don't want to hijack you thread, im just frustrated I'm trying for the first time to duel boot win8 [already installed ]and win7 ,on a uefi .will not let me install to partition I created ,try the rufus usb still no go.i will settle for removing all partitions and installing win7 by it self
#6 in the link you provided ,it will not let me delete the partitions ,I did deleted the acer recovery partition and one other, then win8 wouldn't boot ,I ran a repair and fixed that ,just want to install win7 and be done ,now I know why people get frustrated with win8 uefi ,oh the laptop is not mine
On some Acer, Gateway, P. Bell, Windows 7 x64 will not install in UEFI mode.
Windows 8 Desktops - How to Disable Secure Boot - YouTube
Enabling the boot device menu
Acer said:On most Acer systems, you can use the F12 key on boot to select the drive or network from which loading the operating system. In case the F12 option does not work, you may need to enable this function.
SOLUTION
Enabling the F12 function:
1.Power on the system. As soon as the first logo screen appears, immediately press the F2 key, or the DEL key if you have a desktop, to enter the BIOS.
2.Press the right arrow key to select Main.
3.Use the arrow keys to navigate to F12 Boot Menu, and press ENTER.
4.Select Enabled, and press ENTER.
5.Press the F10 key to save changes and restart the system.
How to Enable or Disable Secure Boot
Acer said:This article only applies to: Windows 8 Desktops
Bootable media from previous versions of Windows may not be recognized in Windows 8. You can change the Secure Boot setting and it should recognize the bootable device.
Use the following steps to change Secure Boot:
1.Completely shut down your computer.
2.Power on the system. As soon as the first logo screen appears, immediately press Delete to enter the BIOS.
3.Use the right arrow key to select Authentication.
4.With Secure Boot highlighted, press Enter and then the down arrow to select Disabled.
5.Use the right arrow key to select Boot Options.
6.With Launch CSM highlighted, press Enter and use the down arrow to select Always.
7.Press Enter.
8.Press the F10 key to save changes and restart the system
My Computer
System One
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- OS
- ME, XP,Vista,Win7,Win8,Win8.1
- Computer type
- PC/Desktop
- Other Info
- Notebooks x 3
Desktops x 5
Towers x 4