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On my laptop's hard drive I have two partitions: C: and F: (Logical) with C: being the primary partition (currently has Windows XP on it)

In my F: partition I have Windows 7 Ultimate (RC build 7100).

I want to format my C: (Windows XP partition) but I can't do it because it has the boot manager/sector on it.

How can I format the C: partition and switch the boot sector the the F: partition without using any CD Media (XP or Win7)?

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up vote 2 down vote accepted

Easiest way is to delete everything you do not need on the drive like the Windows and program files directory, along with everything else and then using Windows 7 Disk management, simply shrink the drive to it's smallest size and extend the F drive to fill the additional space.

Apart from this, the easiest way is obviously just to delete the partition, then extend F and with the Windows disk just run the startup recovery utility which will automatically recreate all the system files. Just curious, How did you install Windows 7 in the first place?

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I mounted the ISO of Win7 RC when it was downloadable and used some windows tool to make a virtual drive, then ran it. – Omar Nov 25 '09 at 0:51

I was going to say use fdisk /mbr but it seems it has been moved to the recovery console, which you may or may not have installed -- seems like you need to install it with CD-Media so not sure if it will work for you or not.

Microsft Recovery Console

EDIT Found this post about the recovery console that may help you out

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