Then select USB from Boot menu from options. It's usually or or or on the most brands. You may skip 4.a and just press the Boot Option Menu Key before OS logo appears during booting. (Reference on GPT and CSM on link below)Ĥ.a From BIOS Boot Order make the USB as the first priority/first boot.(Remember to revert this option after the installation to prevent future error when booting Unit with attached USB Drive on its port).ī.
Remember that UEFI uses GPT partition type and CSM uses MBR. Just search on net how to go to your BIOS settings based on your brand.)Ģ.Disable Safe boot option from BIOS security settings.ģ.Find on your BIOS Settings about Boot Mode, change from UEFI(Unified Extensible Firmware Inferface) boot to CSM(Compability Support Mode)/Legacy BIOS mode boot. Usually by striking key upon loading the unit and before the OS logo appears on the screen. Load BIOS Settings page ((Head to BIOS Setting on your PC/Laptop which differs from different brands.
Therefore even if you make a Bootable flashdrive or CD it won't show up on boot menu or booting process.ĭisable Safe boot and change Boot Mode to CSM/Legacy BIOS Mode.ġ. UEFI has feature called safe boot which adds a extra layer of security to the loader and it prevents booting from external sources like bootable USB Drive or CD. I ran into the same problem when I changed from Windows 10 (due to it's current flaw -the increased internet usage through background apps and system updates) to windows 7.Īlthough it is marked solved, I still have taken the time to add my solution hoping to help future readers of this thread. Therefore installing windows 7 and lower OS that is BIOS Based and uses MBR disk partition takes some proper configuration to be successful. Windows 8 and higher OS uses UEFI mode and has GPT Disk Partition type by default. Don't choose removable, choose hard u will see your hard and USB stick 1) Make sure that your USB bootable shows on a working computer before trying the new BIOSĢ) CSM or Legacy selection are for booting Windows 7, I think, and the UEFI selection is for Windows 8.ģ) when u start press F10/F11(or whatever key) for boot options and if u see categories as removable, hard, CD and etc.
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