Windows 8 and 8.1 Forums

Windows 8.1 clean installation; won't boot in UEFI?

  1. #1

    Posts : 1
    Windows 8.1 x64

    Windows 8.1 clean installation; won't boot in UEFI?

    Hi guys,

    I recently bought a new SSHD for my laptop and after initial problems with trying to install Windows in UEFI, I turned to Legacy and that worked. But now when I change it to UEFI, it just comes up as "Operating system not found".

    Any ideas or solutions would be greatly appreciated, thanks.

      My System SpecsSystem Spec

  2. #2

    Posts : 1,121
    Windows 8.1 x64

    You may have to reinstall so you will have the UEFI configuration. But what about the original install gave you problems with UEFI, were you able to boot into the UEFI version of the install media?
      My System SpecsSystem Spec

Windows 8.1 clean installation; won't boot in UEFI?

Similar Threads
Thread Forum
UEFI Partition Wiped After Windows 7 Installation
Hello all. My first post on these forums. Hope I don't break any rules in it :p I'll try to be short and clear in describing my problem, but please bare with me here as it's not the simplest of issues (not to me anyway). I got a (at the time new) MSi laptop several months back with just a regular...
General Support
Secure Boot issue after 8.1 UEFI installation
Hey guys, I've installed Windows 8.1 on UEFI mode on my new Samsung 840 Pro. Everything works REALLY fast which is great, the UEFI boot process is significantly faster than the old BIOS :) Problem is, after enabling secure boot in the BIOS, I am getting an error message saying "System...
Graphic Cards
Installed UEFI 8.1 (clean) boot partition & more...
The title of this thread was too descriptive to fit within the character allotment...;) Here's what I would have titled it had things not been truncated: Installed UEFI 8.1 (clean) boot partition alongside 8.1 Legacy boot installation in the same system! Here are some comments... *My...
Installation & Setup
UEFI USB Disk - Does not boot from UEFI Windows 8.
Dear Friends, Long time reader of this forum but a first time poster, so please forgive me if this question has already been asked and answered. Laptop: ASUS UX31A-DB71, latest BIOS: 218 Originally my laptop came with Windows 7 and when i looked at disk management my disks were formatted...
Installation & Setup
uefi installation of windows 8
ok... i upgraded from win7 to win8... and now i got to know that win8 would boot even more faster if it has uefi configuration,but to my bad it wasn't enabled in my intel dh55pj motherboard bios... now how do i install windows 8 again with uefi config. ?? i really have no idea about the...
Installation & Setup
HDD not detected during Windows 8 installation in UEFI
ok well this is a little complicated to explain so m gonna summarize it as much as possible. i have a HP Sleekbook 15-B002xx which came with a windows 8 OS installed already. due to some reasons, i tried to shift it back to windows 7. After many unsuccessful tries, i finally managed to install...
Installation & Setup
First Installation of Windows 8 and UEFI
Hi I'm new to eight forums, I hope i can become a valued member soon. I purchased a laptop in Korea not long ago, i came with the option of Win7 or 8 but i chose to get it without an OS because I didnt want an OS in hangul. I installed Windows 7 on it and I've been using it fine ever since. Now...
Installation & Setup

Eight Forums Android App Eight Forums IOS App Follow us on Facebook