Windows 8 and 8.1 Forums


UEFI without doing a clean install?

  1. #1


    Posts : 132
    Windows 8.1 Pro WMC

    UEFI without doing a clean install?


    I built myself a new system and I am now on my third clean install of Windows 9 Pro. The first installation was nixed due to faulty programs and the second by faulty hardware. This installation seems to be fine, at least my event log is not showing any significant errors. I really don't won't to do another clean install so the question I have is:

    Can I install Windows with UEFI without reinstalling on a new hard drive formatted as GPT?

    Ak

      My System SpecsSystem Spec

  2. #2


    Posts : 1,093
    Windows 8 Pro Windows 8.1 Preview


    I don't think that is possible without another clean install to set the proper partition structure for UEFI. However, I don't quite understand where the new hard drive fits in? The way I see it, you need to setup your BIOS for UEFI , select the UEFI boot option for your CD/DVD (in the boot menu). Once done, you can simply reinstall Win 8 (using the UEFI CD/DVD option) and make sure you delete all existing partitions as part of the process. So, once your hard drive shows 100% unallocted, simply click Next and the instllation process should create the proper UEFI partition structure.
      My System SpecsSystem Spec

  3. #3


    Posts : 132
    Windows 8.1 Pro WMC


    I was kind of hoping I could format a GPT drive, copy drive c: to it and then boot from the GPT drive. It would certainly beat spending several days reinstalling my system. I think I will wait until the release of 8.1 before I do another clean install.

    Thanks for the quick reply.

    Ak
      My System SpecsSystem Spec

  4. #4


    Posts : 5,592
    ME, XP,Vista,Win7,Win8,Win8.1


    Welcome to EightForums.

    You can clone Legacy to UEFI.

    If you have Windows 7 installed, & two HDD's, you can clone Legacy to UEFI.
    Migrate BIOS x64 install to UEFI. Solved - Windows 7 Help Forums

    The Paragon app in the link above is for Windows 7, you may need the Paid For app on a Windows 8 PC.
      My System SpecsSystem Spec

  5. #5


    Posts : 132
    Windows 8.1 Pro WMC


    Thank you for that Paragon software suggestion. I was just at their website and their paid software does support Windows 8 64bit. I was going to look at updating my Acronis software but maybe it is time to switch.

    Ak
      My System SpecsSystem Spec

  6. #6


    Posts : 5,360
    7/8/ubuntu/Linux Deepin


    I am using Paragon HDM Pro at the moment. It is very good. You might be fine with Home version.

    Paragon Backup & Recovery Home - Overview
      My System SpecsSystem Spec

UEFI without doing a clean install?
Related Threads
Nob question for you experts. After reading many threads about this UEFI stuff, i'm confused. I have a Asus Sabertooth z77 motherboard and will be fresh installing windows 8.1 full to Samsung 250gb ssd. I'm not quite getting what i'm supposed to configure on the MB for UEFI boot prior to...
Hello! I've been reading for a while, but decided to become a member only day before yesterday to post being unable to find solution. I do apologize in advance if this is a dumb question or answered earlier I would like to nuke system for clean install. I understand there will be system...
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". :cry: Any ideas or solutions would be greatly...
This forum is so much of wealthy info and thanks to you all for helping folks like me. Computer: New Lenovo Z580 Laptop with UEFI and Windows 8 Preinstalled What I did (did many things but this is what I remember): 1. Tried installing Ubuntu, lost partitions and Windows didn't boot either ...
Hello, i have HP Pavilion g6 1360su with Insyde H2O F.6A. I have downloaded and installed the HP UEFI Support Environment from here: http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?softwareitem=ob-119351-1&cc=bg&dlc=bg&lc=en...=. Is my PC compatible with Windows 8 UEFI? :think:
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...
Clean disk before clean install? in Installation & Setup
hello I had many problems with BSOD crashes, and decided to make a new clean install (SSD or harddisk). If I make a new clean install (no upgrade) is it enough to create 1 continuous unallocated disk and then it will make a clean install Or do I have to "clean up" my old disk first before making...
Eight Forums Android App Eight Forums IOS App Follow us on Facebook