Using Disk Management you can see which partition is marked active - it is either a small (about 100 MB) "System Reserved" partition or the Windows 7 partition. Windows 7 always boots to active partition - from active partition the file bootmgr is loaded and also the \boot\BCD store is read from active partition. The tool displays the contents of BCD in a structured explorer like way and allows selection and edits on every single item be it a loader or its elements.įor changing a device element - you simply select the new drive letter from a list and confirm.įor a Vista/Windows 7 loader you should change the "ApplicationDevice" and the "OSDevice" elements, the first specifies device(drive_letter) for winload.exe, the second element specifies the root of the system. I would suggest using Visual BCD Editor - a complete BCD GUI, so you don't have to go to command line and remember syntax and semantics of different command options. BEFORE ANY CHANGES TO BCD - DO A BACKUP OF BCD AND HAVE A RECOVERY CD/USB READY !!
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