Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: Need to create bootmgr etc. on new disk

27 Aug 2014   #1

Windows 7 Ultimate x64
Need to create bootmgr etc. on new disk

I had built a new system, and installed Win7 x64 from DVD on a virgin 1TB drive.
It created a reserved partition, and a system one. I took the back part for a data partition.

This ran fine for a while, but I had data corruption, and decided to build a new disk.
Partitioned it similarly, and reinstalled Win7 to the new disk. And then copied the data.
All the time I kept the wounded disk in the system.
It however did not populate the first partition on the new disk, but continued to boot from the first.

I finally decided to remove the old disk, and now I cannot boot.
I've tried several rounds of marking the first partition active, and trying several bootrec or rebuildbcd
command from within the Win7 install disk, but the active setting doesn't seem to stick and most commands fail. The repair scan does not seem to find the Windows partition anymore. No matter how many times I run it.

I need some help to figure what to do next:
- I can still put the old disk back in, and I guess set the old boot partition active, long enough to copy whatever I need out. I want to remove it.
- It's possible that part 0 on my new disk is somehow the wrong type. I'm considering deleting the partition and redoing it "properly", whatever that may be, to make it bootable.

Suggestions?? Thanks.

My System SpecsSystem Spec
27 Aug 2014   #2

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, 64-bit

Your mistake was having the old disk in the PC when you installed Windows on the new disk.

You need to get your boot files onto the new disk. I'd guess there is more than one way to do that, but the most often used method here is to use EasyBCD. Search the tutorials for it.

Or you could just start over and do another clean install, with ONLY one drive connected. That might be easier, depending on how much customization you've done on the current install.
My System SpecsSystem Spec
27 Aug 2014   #3


Bootmgr - Move to C:\ with EasyBCD

Let us know how it goes.
My System SpecsSystem Spec

27 Aug 2014   #4

Windows 7 Ultimate x64

I haven't figured out a way to get EasyBCD files into the Win7 Install repair environment.
My USB sticks don't seem to mount, this is show up on the removable media in the system.
maybe on the second cd drive....(idea) it doesn't have to boot. <off to try this>

I did get a limited success with Bcdboot copying BCD files to /Boot on the new reserved partition.
But they are still not recognized.
My System SpecsSystem Spec
28 Aug 2014   #5


Obviously you need to put the old disk back in until the operation is done. You said yourself you could do this.

Otherwise mark Win7 partition Active and run Startup Repair - Run 3 Separate Times
My System SpecsSystem Spec
28 Aug 2014   #6

Windows 7 Ultimate x64

Tried that last night. ran it about 6 times.... no detectable forward progress.
My System SpecsSystem Spec
28 Aug 2014   #7


So which partition is now marked Active?
My System SpecsSystem Spec

 Need to create bootmgr etc. on new disk

Thread Tools

Similar help and support threads
Thread Forum
Bootmgr missing. no disk
I have a HP windows 7 32bit desktop computer. I tried to do a factory reset and now I get the bootmgr missing screen. I've tried pressing ctrl+alt+del but eveeytime the computer restarts it go's back to the same booymgr is missing screen. What can I do?
Backup and Restore
Bootmgr file located in different hard disk
Hello i am new to this forum and seek for help. I have 2 physical disk, when fresh install windows 7 both disk are connected to computer. Today i find that the "bootmgr" is placed on second drive, while the system installed on first drive. I am afraid if i remove second drive, it cant boot...
General Discussion
bootmgr error after trying to delete partition off OS disk
Hey everbody, I have an OCZ Agility 3 as well as a Crucial M4 SSD I thought Id setup everything right but then noticed that the drive only had 100 mb available while following some steps from Seans SSD Optimization guide (I finished Step 3, didn't go to Step 4). I went into disk management,...
General Discussion
Create New Disk Parition--Dynamic Disk Only?
I'm trying to create a new disk partition so that I can install Windows 8 (Consumer Preview) on it. However, I'm running into an issue here. When I go to create the partition, I get to the final step and this is what I run into (see image below). I'm thinking of just leaving the space...
Installation & Setup
Bootmgr not found on install disk
HI guys, I have a digital download verson of Win7 Pro64 that i am trying to install over my Vista Home premium 32 install. I have burned the contents of the download to a DVD, however when i try to boot to the DVD it says BOOTMGR is missing. The file structure is the same on the 7 DVD as it is...
Installation & Setup
how to create menu in BOOTMGR file
hellow...!!! thks before for the replier.. just for first quest ! below the case >> I have FLASH DRIVE with seven setup inside I have (WINDOWS 7 x86 and windows 7 x64)in one Install.wim. and i have too (windows 7 & active@diskboot)in one Boot.wim.
Installation & Setup

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 23:12.
Twitter Facebook Google+ Seven Forums iOS App Seven Forums Android App