Recreate system reserved partition in Windows 7

rookie_b used Ask the Experts™

I am restoring form windows backup but only have a wim of the c: drive. How can I recreate the 100mb system reserved partition that contains boot folde and bootmgr? can it be done using diskpart?

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You can boot into WinPE from your Windows 7 disk and create a partition from the installer, just reboot the machine after you have applied the settings. If you have another machine you can attach the drive to it and use diskpart or similar on it. If you don't then use a live CD that runs GParted (the GNU Partition Editor) or even the GParted live CD

Alternatively just don't bother with the system reserved partition as it's not strictly necessary anyway, although it could prevent you from recovering the system in the future if you can't run the Windows Recovery Environment from the DVD.
Top Expert 2012

This tutorial explains how to do it rather easily:

Windows 7 - System Reserved : Create Using Disk Management
If you need to keep an existing install then that works very well but if you are going to blow the whole lot away by restoring an image then IMO that takes a lot of time to achieve something simple.


Thanks Endjinn,

I am trying diskpart but get a BCD error at restart:

1 boot from a WinPE usb stick
2 use diskpart to
- clean the drive,
- create a 100MB primary  NTFS active partition, assign letter=S
- create a primary ntfs partition, assign letter=W
3. Copy the bootmgr and the boot folder from an existing working 100mb partition
4 Use imagex to apply the wim to W:

error - can't access bcd?

I prefer using diskpart/imagex, as it both are freely available Windows tools and are easy to script into a .cmd batch file.

Where am I going wrong?


Do I need to copy bootmr file and bootm
The 100MB partition isn't for booting, it's for recovery. You need to set the boot flag on the Windows partition, not the system reserved one.

Now that you have restored the image, boot the DVD and select Repair. In System Recovery Options choose Command Prompt and use the bootrec.exe tool.

bootrec /rebuildbcd will scan the disk and rebuild your boot config data with the options you choose.

Please see this KB for the lowdown on bootrec and what it's doing exactly


Bcedit was what I needed to add to the mix. And the MS link was really useful, as it pointed out the h,s and r attrib on the BCD fille.



sorry, I meant bootrec, not bcedit


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