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Wipe Hard drive from BIOS using installation disc | 3 Methods.

This can be done using DD or Disk Management.

If everything looks okay, you can now delete the System Reserved partition.

Start Disk Management and make sure the Windows 7 partition is showing that it's the System partition.

Restart the computer and enter the BIOS. Make sure the Windows 7 drive (Disk 0) is set as the booting drive.

Start Disk Management and make the Windows 7 partition Active partition (this would be the E: partition).

Copy the Windows 7 booting files to the Windows 7 partition by running the following commands:.

Start an Administrator Command Prompt and run the following commands to fix the BCD file:īcdedit /set device partition=E:.

This is just a general recommendation before making partitioning changes.

Create a backup image of the Windows 7 partition and the System Reserved partition.

How do I get the existing boot manager from this 2nd partition on the old drive to the new drive so I can take out the old drive and still boot to my new OS? Checked around and saw a few threads to copy it over but BCD wouldn't copy and then gave me an access denied when I tried in command prompt. Again though, super important I get this other software working.ģ. Should I even do it? I have already installed some programs I'm sure the registry is peaking in E. Can I change my new drive from E to C? I have a niche Quickbooks integration software that won't install unless its C and its driving me nuts I need this software and the developer will not change it.Ģ. So if I unplug my old hard drive it says boot manager not found at startup.ġ. To complicate matters even worse, the boot manager is actually a second partition on the OLD hard drive labeled F. So now I have my (new) primary drive as E and the old drive as G. The goal is to get off my old drive altogether so I changed my old C: to G: but it wouldn't let me change the new drive to C. It assigned drive letter E to the new hard drive and left my old drive as C.

Long story short I couldn't boot from a Windows 7 DVD so I hooked the drive up in an empty bay, started the DVD in my current Windows 7 setup and installed on the second HDD.