1. 雙OS Windows 7 / Windows 8
2. 後裝 Windows 8 成為Default OS
3. Command mode: failure
3-1 Boot Configuration Data Edit
C:\>bcdedit
Windows Boot Manager
--------------------
identifier {bootmgr}
device partition=\Device\HarddiskVolume1
description Windows Boot Manager
locale en-US
inherit {globalsettings}
default {default}
resumeobject {db075fb7-2662-11e1-83c4-ff9d1aa23ceb}
displayorder {default}
{current}
toolsdisplayorder {memdiag}
timeout 30
custom:26000025 Yes
Windows 開機載入器
-------------------
identifier {default}
device partition=D:
path \Windows\system32\winload.exe
description Windows Developer Preview
locale en-US
inherit {bootloadersettings}
recoverysequence {db075fb9-2662-11e1-83c4-ff9d1aa23ceb}
recoveryenabled Yes
osdevice partition=D:
systemroot \Windows
resumeobject {db075fb7-2662-11e1-83c4-ff9d1aa23ceb}
nx OptIn
custom:250000c2 1
Windows 開機載入器
-------------------
identifier {current}
device partition=C:
path \Windows\system32\winload.exe
description Windows 7
locale zh-TW
inherit {bootloadersettings}
recoverysequence {db075fb5-2662-11e1-83c4-ff9d1aa23ceb}
recoveryenabled Yes
osdevice partition=C:
systemroot \Windows
resumeobject {db075fb3-2662-11e1-83c4-ff9d1aa23ceb}
nx OptIn
3-2. 變更Default OS by ID 如下
C:\>bcdedit /default {db075fb3-2662-11e1-83c4-ff9d1aa23ceb}
操作順利完成。
C:\>bcdedit
Windows Boot Manager
--------------------
identifier {bootmgr}
device partition=\Device\HarddiskVolume1
description Windows Boot Manager
locale en-US
inherit {globalsettings}
default {default}
resumeobject {db075fb7-2662-11e1-83c4-ff9d1aa23ceb}
displayorder {db075fb8-2662-11e1-83c4-ff9d1aa23ceb}
{current}
toolsdisplayorder {memdiag}
timeout 30
custom:26000025 Yes
Windows 開機載入器
-------------------
identifier {db075fb8-2662-11e1-83c4-ff9d1aa23ceb}
device partition=D:
path \Windows\system32\winload.exe
description Windows Developer Preview
locale en-US
inherit {bootloadersettings}
recoverysequence {db075fb9-2662-11e1-83c4-ff9d1aa23ceb}
recoveryenabled Yes
osdevice partition=D:
systemroot \Windows
resumeobject {db075fb7-2662-11e1-83c4-ff9d1aa23ceb}
nx OptIn
custom:250000c2 1
Windows 開機載入器
-------------------
identifier {current}
device partition=C:
path \Windows\system32\winload.exe
description Windows 7
locale zh-TW
inherit {bootloadersettings}
recoverysequence {db075fb5-2662-11e1-83c4-ff9d1aa23ceb}
recoveryenabled Yes
osdevice partition=C:
systemroot \Windows
resumeobject {default}
nx OptIn
4. The easy way by Winodws 7
4-1 電腦右鍵(內容)
4-2 進階
4-3 啟動及修復設定
4-4 選取Default boot OS
OK!
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