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I have Windows 7 installed on two different drives, how do I remove the other one?

post #1 of 5
Thread Starter 
I recently got a new SSD and installed Windows 7 on it and wanted to format my old HDD after. Turns out it doesn't work like that, and now I can't format it when Windows is installed on it.

I want to format my old HDD that HAD Windows 7 installed, how do I do that?

EDIT: My old HDD still has Windows 7 installed, which is why it won't let me format it.
Edited by Jmvars - 3/26/13 at 1:45pm
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Komplett PC
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post #2 of 5
Change boot priority to boot from the SSD?
Or only connect the HDD's power connector > boot into Windows using your SSD, then plus in the sata connector of the HDD and format through "My computer"
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post #3 of 5
Make sure you have the license key you used to install that copy of Windows, for future use.

I usually use Killdisk http://www.killdisk.com/, but as always, make sure you know what you're doing, and you double-and-triple check everything before you start reformatting.

Never had any issues with it.
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post #4 of 5
Thread Starter 
Quote:
Originally Posted by trojan92 View Post

Change boot priority to boot from the SSD?
Or only connect the HDD's power connector > boot into Windows using your SSD, then plus in the sata connector of the HDD and format through "My computer"

I tried this, but apparently it did not detect it in BIOS.
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Windows 7 Home Premium 64bit SP1 ASUS VG248QE 24" 144Hz BenQ G2222HDL 21.5" 60Hz Steelseries 6G v2 
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post #5 of 5
Sounds like your EFI boot sector is installed on the "old" HDD and when you installed Windows 7 to the SSD, it left the EFI partition on the HDD. Windows won't let you wipe the HDD because it knows you need the EFI partition to boot.

The easiest way to fix it is to disconnect the HDD and reinstall Windows 7 on the SSD. Then after it's all up and running, reconnect the HDD and copy the stuff you need off of it.

You might try opening a command prompt as Administrator, run DISKPART, select the old HDD, and type "CLEAN". That will delete ALL partitions on whichever disk is selected. Use DISKPART with extreme caution.

Greg
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