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Windows 7: Dual Boot - Can not remove one of the OS's, system partition

07 Feb 2013   #1
hollowandi

Windows 7
 
 
Dual Boot - Can not remove one of the OS's, system partition

Dear readers,

I have recently installed a 64bit version of Windows 7 on my computer without removing the old one(32bit). The reason for not removing the old one was that my DVD writer broke so I had to install the 64bit version while still using the 32bit version. I borrowed a friend's memory stick, put the window 7 disc's contents on the USB. I then made it into an image and mounted it.

The installation was perfectly fine, got new drivers and all, but when I tried to format(or delete) the C partition on which I have my 32bit windows installed it displayed the following error message http://puu.sh/1YRwa
I then stopped the old OS from booting, but I'm stuck here. I still can not format the partition, as it's still a system partition.

How do I make the C partition a normal partition and turn the E partition into the system partition?
Here's a screenshot of the disk management http://puu.sh/1YRBK

Regards,
hollowandi


My System SpecsSystem Spec
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07 Feb 2013   #2
theog

Microsoft Community Contributor Award Recipient

ME/XP/Vista/Win7
 
 

You can not delete C: as C: is the only bootable partition.
Logical partitions are not OS bootable.
My System SpecsSystem Spec
07 Feb 2013   #3
hollowandi

Windows 7
 
 

Can I somehow install two copies of windows on C and delete the old one?
My System SpecsSystem Spec
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07 Feb 2013   #4
gregrocker

 

The correct way to install Win7 is from boot, so that it will always see itself as C when booted.

You have a flash stick so make it bootable to install correctly, booting the stick to do a Custom install, deleting all partitions to create and format New as shown in Steps 6 and 7 of Clean Install Windows 7

The best tool to always successfully write the ISO to stick so its bootable is UltraISO Software To Create Bootable USB Flash Drive . Then boot it using the one-time BIOS Boot menu key at boot, triggering stick located under USB, Removable or HD's.

Read and follow closely these same steps to get a perfect Clean Reinstall - Factory OEM Windows 7
My System SpecsSystem Spec
07 Feb 2013   #5
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

@greg A friend of mine has 3 harddisks and can select in BIOS to boot from Harddisk,CD, USB,network. He CAN'T select from which harddisk to boot. Does it boot from disk3 if disk1 and disk2 have no ACTIVE partitions (and disk3 has an active partition)?

He's far away and a total newbe. So I just want to know
My System SpecsSystem Spec
07 Feb 2013   #6
gregrocker

 

There should be another place in the BIOS under Storage drive listings where you can set the primary HD if the specific HD choice is not given in BIOS Boot priority list.

The Active partition points to where the System boot files are to be located for booting, install or repairs. But if they are not there or in disrepair then of course it won't boot and may skip the drive.
My System SpecsSystem Spec
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 Dual Boot - Can not remove one of the OS's, system partition




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