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I am trying to install a Windows 7 x64 Home Premium in UEFI mode1. For this purpose, I obtained a DVD from the vendor of my computer that contains all editions of Windows 7 x64. (The Microsoft Win 7 ISO download site does not work for me because it refuses to accept the (OEM) product key found on my computer's certificate of authenticity, hence I cannot download from there - Microsoft recommends to ask the PC vendor for a disk instead, which is what I did.)
According to some resources such as this article (only in German), Windows 7 x64 DVDs are already prepared for UEFI installation. Also, the article says I need to enter the UEFI boot menu upon booting while the Windows DVD is in the drive. The UEFI boot menu should then show two entries for the DVD drive, one labeled "UEFI" for the UEFI boot.
I can enter the UEFI boot menu. Unfortunately, I see only the following entries ("..." means I skipped some detail information that only consisted of letters and numbers and probably does nothing to illustrate the issue):
- UEFI Default
- SATA2:HL-DT-ST DVDRAM ...
- SATA1:...
- Generic-SD/MMC 1.00
- Generic-Compact Flash 1.01
- Generic-SM/XD-Picture 1.02
- Generic-MS/MS-Pro 1.08
- Realtek PXE B01 D00
- Enter Setup
So, the DVD does not show up in UEFI mode; it just shows up once, in normal mode.
As far as I can tell, secure boot is disabled in my MSI UEFI BIOS. (It looks like this, and the entire Windows 8 feature group that contains the secure boot feature is set to disabled.)
From superficially looking at the contents of the installation DVD, it looks like it is supposed to support UEFI boot:
- There is a
bootmgr.efi
file in the root directory. - There are some files in a
/efi/microsoft/boot
subdirectory (namelybcd
,cdboot.efi
,cdboot_noprompt.efi
,efisys.bin
,efisys_noprompt.bin
, as well as afonts
subdirectory).
Am I doing anything wrong in the UEFI boot manager while trying to launch the setup? Or is my Windows 7 DVD not actually fit for UEFI boot - in which case my question becomes: Can I create a modified bootable Windows 7 setup medium based upon the DVD I have that actually can boot in UEFI mode?
1: My actual objective is to make use of the full 4 TB of my system HDD, which seems to be possible only with GPT rather than MBR, which in turn seems to require installing Windows 7 in UEFI mode.
Can you post the partition information for the disk trying to boot to? "Can I create a modified bootable Windows 7 setup medium based upon the DVD I have that actually can boot in UEFI mode?" - The Windows 7 ISO your using already supports EFI. Your likely just applying that ISO to the disk incorrectly. Are you writting the ISO to an optical disk or are you writting it to a flash drive? "it just shows up once, in normal mode." - What exactly is "normal" mode? – Ramhound – 2016-11-14T18:51:39.037
@Ramhound: "partition information for the disk trying to boot to" - do you mean the HDD I'm trying to install to? It is empty, new. It has no partitions (except for those that are being created during the Windows setup process). "Your likely just applying that ISO to the disk incorrectly." - I am not applying any ISO, my computer vendor directly burned a DVD and gave that to me. I am happy to extract an ISO from that DVD and apply it differently to a new DVD, though, if there are any hints on what should be done differently. "What exactly is 'normal' mode?" - the non-UEFI mode. – O. R. Mapper – 2016-11-14T19:08:11.793
"do you mean the HDD I'm trying to install to?" - No; I do not mean the HDD, the target HDD should have no partitions, if it does you should delete them. Where can I download Windows 7 (legally from Microsoft)?. "the non-UEFI mode" - So Legacy Mode or CSM.
– Ramhound – 2016-11-14T20:01:34.577@Ramhound: Ok, the target HDD is indeed empty (or at least, I see to it that it is upon each of these Windows reinstalls). With the instructions you linked to, I could successfully create a bootable USB key from which I can install Windows in UEFI mode, and the installer now accesses the full 4 TB of the HDD. Unfortunately, the current installation (I chose Windows 7 Home Premium N, as according to this answer the N versions are the ones distributed here in the EU) will not accept my product key, saying it does not match the current "Windows SKU"...
– O. R. Mapper – 2016-11-14T22:13:23.703... This issue seems to be well-known, so I'm trying to find out which SKU the key on my COA belongs to. For the language, I chose German, but of course that's a mere guess based upon the fact that I'm in Germany and had successfully installed Windows in German from my vendor's DVD, which did not seem to prevent me from choosing whichever language I like. We'll see how many subsequent installations it'll take until I happen to hit the correct SKU :) Or maybe there's a way to find out which SKU my vendor's DVD installs when I choose Home Premium in the menu from that installer? – O. R. Mapper – 2016-11-14T22:22:45.217
@Ramhound: I am struggling with another problem now, as since this last, successful UEFI-based installation, the computer boots right into the installed Windows 7 and ignores any keypresses while showing the "Press del to enter setup, F11 for boot menu" message, unlike it was the case before. I will continue trying to find the right installer for installing a Windows whose SKU matches my product key once I can influence what device that computer boots from again. Thanks for your advice so far in any case!
– O. R. Mapper – 2016-11-14T23:26:41.587If your being told the product key isn't correct then your installed the wrong version of Windows 7 – Ramhound – 2016-11-14T23:56:15.797
@Ramhound: I know, see my above comments where I describe I'm trying to find out which SKU my product key belongs to. Anyway, for as long as I don't know how to bring up the UEFI boot menu again, I cannot install another Windows version.
– O. R. Mapper – 2016-11-15T08:05:14.160@Ramhound: The BIOS issue has been solved. Installation of Windows 7 Home Premium (without any N or K) was successful and my key is accepted. It seems like the correct answer to this question is/was "Your DVD is not truly UEFI-enabled. Use the ISO from ... instead."
– O. R. Mapper – 2016-11-15T22:23:08.283