Install Windows 7 64-bit in UEFI/CSM on GPT by handWhat exactly is “UEFI with CSM” boot mode?Install...
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Install Windows 7 64-bit in UEFI/CSM on GPT by hand
What exactly is “UEFI with CSM” boot mode?Install Windows 7 Ultimate x64 as UEFI with GPTClean install of Windows 7 Pro 64-bit on a UEFI laptop with GPT partition?Installing Win 7 To GPT and Why My UEFI Mobo Won't Boot From CD Unless In Legacy ModeBooting with MBR in UEFI (No CSM mode at all)?Can only install Windows 7 in UEFI-Legacy ModeFreezing Window install UEFI mode on a GPT DiskWindows 7 Ultimate 64-bit cannot boot in UEFIWindows 10 won't boot via UEFI after fresh installCan't start windows installer from a USB drive on an UEFI-GPT-Windows scenarioWhat exactly is “UEFI with CSM” boot mode?
I have Windows 10 / Windows 7 dual boot on my laptop. Boot mode is UEFI with CSM and my hard drive is correctly formatted and partitioned in GPT. Windows 7 used to work well before I decided to fully re-install it.
First bit of background, (I believe) I am experienced in installing Windows and playing around with WIMs and related utilities. I manually captured a backup WIM a long time ago but now I don't want to use it. I took install.wim from the 64-bit Windows 7 DVD image and applied it by hand:
Dism.exe /Apply-Image /ImageFile:E:sourcesinstall.wim /Index:3 /ApplyDir:G: /Verify
I formatted drive G prior to installing so it's clean.
I left the BCD unchanged and tried booting it. Well it stuck at disk.sys. I then applied the backup WIM to make sure everything is fine. So it is. The system from my backup WIM functions normally, without anything else changed. This ensures that all my configuration like BCD and BIOS settings are correct.
I do NOT want to create any USB installer or burn a DVD. How would I make a freshly "installed" Windows 7 boot?
windows-7 boot uefi
asked Jan 8 '18 at 9:21
iBugiBug
2,57341839
bumped to the homepage by Community♦ 17 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
|
show 1 more comment
I have Windows 10 / Windows 7 dual boot on my laptop. Boot mode is UEFI with CSM and my hard drive is correctly formatted and partitioned in GPT. Windows 7 used to work well before I decided to fully re-install it.
First bit of background, (I believe) I am experienced in installing Windows and playing around with WIMs and related utilities. I manually captured a backup WIM a long time ago but now I don't want to use it. I took install.wim from the 64-bit Windows 7 DVD image and applied it by hand:
Dism.exe /Apply-Image /ImageFile:E:sourcesinstall.wim /Index:3 /ApplyDir:G: /Verify
I formatted drive G prior to installing so it's clean.
I left the BCD unchanged and tried booting it. Well it stuck at disk.sys. I then applied the backup WIM to make sure everything is fine. So it is. The system from my backup WIM functions normally, without anything else changed. This ensures that all my configuration like BCD and BIOS settings are correct.
I do NOT want to create any USB installer or burn a DVD. How would I make a freshly "installed" Windows 7 boot?
windows-7 boot uefi
asked Jan 8 '18 at 9:21
iBugiBug
2,57341839
bumped to the homepage by Community♦ 17 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
UEFI with CSM == “BIOS”. Windows only supports booting from GPT in “real” UEFI mode. So which is it that you want? What do you mean by “left the BCD unchanged”? Where does it come from?
– Daniel B
Jan 8 '18 at 9:48
@DanielB BCD unchanged = left at previous state where my backup image boots perfectly. The previous state is exactly a Windows 7 64-bit on a GPT booting in UEFI/CSM. Note as well that the ESP is on the same drive.
– iBug
Jan 8 '18 at 10:16
For Windows, GPT => UEFI. Please stop using wrong terminology in order to avoid unnecessary confusion. It's UEFI mode, period. You can also disable CSM once and for all.
– user772515
Jan 8 '18 at 11:56
@MichaelBay There are three options in my MB settings: BIOS, UEFI with CSM, UEFI. What do you mean? AFAIK Windows 7 won't boot without CSM.
– iBug
Jan 8 '18 at 14:22
"BIOS" (Legacy) is one mode, "UEFI" is another mode, "UEFI with CSM" is NOT a third one, it merely allows dual or multi-booting OSes in either UEFI or Legacy mode. Windows 7 CAN be installed in UEFI mode and if it is installed in a GPT drive it certainly is (Windows only supports booting from GPT in “real” UEFI mode). CSM, the "thing" that emulates the 40yo BIOS, is NOT required if all the OSes are installed in UEFI mode. Rule of thumb: Always use UEFI mode and that mode only unless the OS has no support for it, not the case here.
– user772515
Jan 8 '18 at 14:31
|
show 1 more comment
I have Windows 10 / Windows 7 dual boot on my laptop. Boot mode is UEFI with CSM and my hard drive is correctly formatted and partitioned in GPT. Windows 7 used to work well before I decided to fully re-install it.
First bit of background, (I believe) I am experienced in installing Windows and playing around with WIMs and related utilities. I manually captured a backup WIM a long time ago but now I don't want to use it. I took install.wim from the 64-bit Windows 7 DVD image and applied it by hand:
Dism.exe /Apply-Image /ImageFile:E:sourcesinstall.wim /Index:3 /ApplyDir:G: /Verify
I formatted drive G prior to installing so it's clean.
I left the BCD unchanged and tried booting it. Well it stuck at disk.sys. I then applied the backup WIM to make sure everything is fine. So it is. The system from my backup WIM functions normally, without anything else changed. This ensures that all my configuration like BCD and BIOS settings are correct.
I do NOT want to create any USB installer or burn a DVD. How would I make a freshly "installed" Windows 7 boot?
windows-7 boot uefi
asked Jan 8 '18 at 9:21
iBugiBug
2,57341839
I have Windows 10 / Windows 7 dual boot on my laptop. Boot mode is UEFI with CSM and my hard drive is correctly formatted and partitioned in GPT. Windows 7 used to work well before I decided to fully re-install it.
First bit of background, (I believe) I am experienced in installing Windows and playing around with WIMs and related utilities. I manually captured a backup WIM a long time ago but now I don't want to use it. I took install.wim from the 64-bit Windows 7 DVD image and applied it by hand:
Dism.exe /Apply-Image /ImageFile:E:sourcesinstall.wim /Index:3 /ApplyDir:G: /Verify
I formatted drive G prior to installing so it's clean.
I left the BCD unchanged and tried booting it. Well it stuck at disk.sys. I then applied the backup WIM to make sure everything is fine. So it is. The system from my backup WIM functions normally, without anything else changed. This ensures that all my configuration like BCD and BIOS settings are correct.
I do NOT want to create any USB installer or burn a DVD. How would I make a freshly "installed" Windows 7 boot?
windows-7 boot uefi
windows-7 boot uefi
asked Jan 8 '18 at 9:21
iBugiBug
2,57341839
asked Jan 8 '18 at 9:21
iBugiBug
2,57341839
asked Jan 8 '18 at 9:21
iBugiBug
2,57341839
asked Jan 8 '18 at 9:21
iBugiBug
2,57341839
asked Jan 8 '18 at 9:21
iBugiBug
2,57341839
2,57341839
bumped to the homepage by Community♦ 17 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
bumped to the homepage by Community♦ 17 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
UEFI with CSM == “BIOS”. Windows only supports booting from GPT in “real” UEFI mode. So which is it that you want? What do you mean by “left the BCD unchanged”? Where does it come from?
– Daniel B
Jan 8 '18 at 9:48
@DanielB BCD unchanged = left at previous state where my backup image boots perfectly. The previous state is exactly a Windows 7 64-bit on a GPT booting in UEFI/CSM. Note as well that the ESP is on the same drive.
– iBug
Jan 8 '18 at 10:16
For Windows, GPT => UEFI. Please stop using wrong terminology in order to avoid unnecessary confusion. It's UEFI mode, period. You can also disable CSM once and for all.
– user772515
Jan 8 '18 at 11:56
@MichaelBay There are three options in my MB settings: BIOS, UEFI with CSM, UEFI. What do you mean? AFAIK Windows 7 won't boot without CSM.
– iBug
Jan 8 '18 at 14:22
"BIOS" (Legacy) is one mode, "UEFI" is another mode, "UEFI with CSM" is NOT a third one, it merely allows dual or multi-booting OSes in either UEFI or Legacy mode. Windows 7 CAN be installed in UEFI mode and if it is installed in a GPT drive it certainly is (Windows only supports booting from GPT in “real” UEFI mode). CSM, the "thing" that emulates the 40yo BIOS, is NOT required if all the OSes are installed in UEFI mode. Rule of thumb: Always use UEFI mode and that mode only unless the OS has no support for it, not the case here.
– user772515
Jan 8 '18 at 14:31
|
show 1 more comment
UEFI with CSM == “BIOS”. Windows only supports booting from GPT in “real” UEFI mode. So which is it that you want? What do you mean by “left the BCD unchanged”? Where does it come from?
– Daniel B
Jan 8 '18 at 9:48
@DanielB BCD unchanged = left at previous state where my backup image boots perfectly. The previous state is exactly a Windows 7 64-bit on a GPT booting in UEFI/CSM. Note as well that the ESP is on the same drive.
– iBug
Jan 8 '18 at 10:16
For Windows, GPT => UEFI. Please stop using wrong terminology in order to avoid unnecessary confusion. It's UEFI mode, period. You can also disable CSM once and for all.
– user772515
Jan 8 '18 at 11:56
@MichaelBay There are three options in my MB settings: BIOS, UEFI with CSM, UEFI. What do you mean? AFAIK Windows 7 won't boot without CSM.
– iBug
Jan 8 '18 at 14:22
"BIOS" (Legacy) is one mode, "UEFI" is another mode, "UEFI with CSM" is NOT a third one, it merely allows dual or multi-booting OSes in either UEFI or Legacy mode. Windows 7 CAN be installed in UEFI mode and if it is installed in a GPT drive it certainly is (Windows only supports booting from GPT in “real” UEFI mode). CSM, the "thing" that emulates the 40yo BIOS, is NOT required if all the OSes are installed in UEFI mode. Rule of thumb: Always use UEFI mode and that mode only unless the OS has no support for it, not the case here.
– user772515
Jan 8 '18 at 14:31
UEFI with CSM == “BIOS”. Windows only supports booting from GPT in “real” UEFI mode. So which is it that you want? What do you mean by “left the BCD unchanged”? Where does it come from?
– Daniel B
Jan 8 '18 at 9:48
UEFI with CSM == “BIOS”. Windows only supports booting from GPT in “real” UEFI mode. So which is it that you want? What do you mean by “left the BCD unchanged”? Where does it come from?
– Daniel B
Jan 8 '18 at 9:48
@DanielB BCD unchanged = left at previous state where my backup image boots perfectly. The previous state is exactly a Windows 7 64-bit on a GPT booting in UEFI/CSM. Note as well that the ESP is on the same drive.
– iBug
Jan 8 '18 at 10:16
@DanielB BCD unchanged = left at previous state where my backup image boots perfectly. The previous state is exactly a Windows 7 64-bit on a GPT booting in UEFI/CSM. Note as well that the ESP is on the same drive.
– iBug
Jan 8 '18 at 10:16
For Windows, GPT => UEFI. Please stop using wrong terminology in order to avoid unnecessary confusion. It's UEFI mode, period. You can also disable CSM once and for all.
– user772515
Jan 8 '18 at 11:56
For Windows, GPT => UEFI. Please stop using wrong terminology in order to avoid unnecessary confusion. It's UEFI mode, period. You can also disable CSM once and for all.
– user772515
Jan 8 '18 at 11:56
@MichaelBay There are three options in my MB settings: BIOS, UEFI with CSM, UEFI. What do you mean? AFAIK Windows 7 won't boot without CSM.
– iBug
Jan 8 '18 at 14:22
@MichaelBay There are three options in my MB settings: BIOS, UEFI with CSM, UEFI. What do you mean? AFAIK Windows 7 won't boot without CSM.
– iBug
Jan 8 '18 at 14:22
"BIOS" (Legacy) is one mode, "UEFI" is another mode, "UEFI with CSM" is NOT a third one, it merely allows dual or multi-booting OSes in either UEFI or Legacy mode. Windows 7 CAN be installed in UEFI mode and if it is installed in a GPT drive it certainly is (Windows only supports booting from GPT in “real” UEFI mode). CSM, the "thing" that emulates the 40yo BIOS, is NOT required if all the OSes are installed in UEFI mode. Rule of thumb: Always use UEFI mode and that mode only unless the OS has no support for it, not the case here.
– user772515
Jan 8 '18 at 14:31
"BIOS" (Legacy) is one mode, "UEFI" is another mode, "UEFI with CSM" is NOT a third one, it merely allows dual or multi-booting OSes in either UEFI or Legacy mode. Windows 7 CAN be installed in UEFI mode and if it is installed in a GPT drive it certainly is (Windows only supports booting from GPT in “real” UEFI mode). CSM, the "thing" that emulates the 40yo BIOS, is NOT required if all the OSes are installed in UEFI mode. Rule of thumb: Always use UEFI mode and that mode only unless the OS has no support for it, not the case here.
– user772515
Jan 8 '18 at 14:31
|
show 1 more comment
1 Answer
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Your assumption is incorrect that the unchanged BCD settings can be used for the new install. You need to generate new settings with either the bcdboot or bootrec command-line utilities after you've applied the image.
answered Dec 31 '18 at 6:58
ShadowFlareShadowFlare
11
add a comment |
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Your assumption is incorrect that the unchanged BCD settings can be used for the new install. You need to generate new settings with either the bcdboot or bootrec command-line utilities after you've applied the image.
answered Dec 31 '18 at 6:58
ShadowFlareShadowFlare
11
add a comment |
Your assumption is incorrect that the unchanged BCD settings can be used for the new install. You need to generate new settings with either the bcdboot or bootrec command-line utilities after you've applied the image.
answered Dec 31 '18 at 6:58
ShadowFlareShadowFlare
11
add a comment |
Your assumption is incorrect that the unchanged BCD settings can be used for the new install. You need to generate new settings with either the bcdboot or bootrec command-line utilities after you've applied the image.
answered Dec 31 '18 at 6:58
ShadowFlareShadowFlare
11
Your assumption is incorrect that the unchanged BCD settings can be used for the new install. You need to generate new settings with either the bcdboot or bootrec command-line utilities after you've applied the image.
answered Dec 31 '18 at 6:58
ShadowFlareShadowFlare
11
answered Dec 31 '18 at 6:58
ShadowFlareShadowFlare
11
answered Dec 31 '18 at 6:58
ShadowFlareShadowFlare
11
answered Dec 31 '18 at 6:58
ShadowFlareShadowFlare
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UEFI with CSM == “BIOS”. Windows only supports booting from GPT in “real” UEFI mode. So which is it that you want? What do you mean by “left the BCD unchanged”? Where does it come from?
– Daniel B
Jan 8 '18 at 9:48
@DanielB BCD unchanged = left at previous state where my backup image boots perfectly. The previous state is exactly a Windows 7 64-bit on a GPT booting in UEFI/CSM. Note as well that the ESP is on the same drive.
– iBug
Jan 8 '18 at 10:16
For Windows, GPT => UEFI. Please stop using wrong terminology in order to avoid unnecessary confusion. It's UEFI mode, period. You can also disable CSM once and for all.
– user772515
Jan 8 '18 at 11:56
@MichaelBay There are three options in my MB settings: BIOS, UEFI with CSM, UEFI. What do you mean? AFAIK Windows 7 won't boot without CSM.
– iBug
Jan 8 '18 at 14:22
"BIOS" (Legacy) is one mode, "UEFI" is another mode, "UEFI with CSM" is NOT a third one, it merely allows dual or multi-booting OSes in either UEFI or Legacy mode. Windows 7 CAN be installed in UEFI mode and if it is installed in a GPT drive it certainly is (Windows only supports booting from GPT in “real” UEFI mode). CSM, the "thing" that emulates the 40yo BIOS, is NOT required if all the OSes are installed in UEFI mode. Rule of thumb: Always use UEFI mode and that mode only unless the OS has no support for it, not the case here.
– user772515
Jan 8 '18 at 14:31