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No boot device available error on Optiplex 780 after restoring the image need help

Hi

We purchased 50 refurbished desktop computers (OptiPlex 760 and 780) from a dell registered partners.
All the 760 and 780 have the Western Digital with 250 Gb Hard Disk
Hard disk Model No: Western digital WDS2500AAJS

I had installed a Windows 7 on a OptiPlex 760  PC  from a windows 7 disc and after installing all the drivers  and after  successful completion of the OS with all Microsoft updates, I captured the image of this PC from a Paragon Hard disk manger 12 recovery media builder  (licenced version) and it successfully captured the image of this working PC on to an external HD Drive.

I then restored this image through the recovery media builder to another PC of the same model. After 30 minutes of going through the restore process, paragon finally says the restore process completed successfully.

When I remove the recovery media from the CD Rom drive and reboot the PC.

I get an error says "No boot device available"
Strike F1 to retry boot
F2 for set up utility
Press F5 to run on-board diagnostics.

When I go to the bios I can see the HD and I tried installing OS on another model  dell PC and did the same and I get the same error.

I have no idea as why the Dell PCs is not booting, after successfully reimaging. I have done with the Acer Laptops and desktops the same procedure and  it successfully loads the OS after the imaging process.

Any help will be really helpful.
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lianne143
Asked:
lianne143
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4 Solutions
 
Tony GiangrecoCommented:
In Paragon, make the partition active.
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lianne143Author Commented:
Hi

I tried with  swapping with the low capacity  80 Gb Maxtor Hard disk and the OS boots after a successful completing of the restore process.

So I don't know why it doesn't work on a 250 Gb Hard Disk , which came with the dell OptiPlex 760 and 780

Any help to make it work on a 250 GB HD will be really great!
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Tony GiangrecoCommented:
The 250 may in-compatible with it.. possibly a different Sata spec, too large for the bios, the partition is not active or there is a problem with the drive or partition that you restored.
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lianne143Author Commented:
If I freshly install windows 7 from a disk , it successfully installs.
But the OS doesn't boot only when installed from a Paragon restore media.
This had happened with both 760 and 780 PCs.
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Tony GiangrecoCommented:
Did you go back into Paragon, make the partition active and accept the change?
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lianne143Author Commented:
I am not sure if Paragon  has a option to make partition active , I am booting now through the Paragon recovery media and will post you as ASAP.

thanks
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Tony GiangrecoCommented:
Yes, Paragon does have that option... at least in all the versions I've used.
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lianne143Author Commented:
There was a option to set active under
Menu -Partition-Modify-Set Active

 when I set active and reboot  , it says boot MGR missing
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Tony GiangrecoCommented:
I use a Paragon Partition Mgr PE DVD. I actually performed this process yesterday when I copied a partition to a new hd for a dell laptop.  It worked perfect for me.

Either you have a bad DVD or a different version. I suggest contacting Paragon support if that's the case.
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Tony GiangrecoCommented:
You can also boot with the Windows DVD and perform a repair.
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lianne143Author Commented:
I will be imaging 50 PCs ' so is will be good if paragon is sorted. If not is there a way of creating virtual image ands pushing to new Dell PCs. I don't have any deployment server in place at the moment.
Thanks
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nobusCommented:
are you sure the image was of the whole disk?  not only the os partition?
then - what happens if you boot this pc from the install DVD - does it find the OS ?  and repairs it?
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lianne143Author Commented:
Thank guys for all your help.

I was using paragon hard disk manager 12 and after taking the image of the reference PC and after restoring this image to a identical PC  system partition was not active and it didn't  give me an option to set the partition active(it was completely greyed)

I created a WinPE disk from paragon hard disk manager premimum14 and this worked after taking afresh image and restoring back.
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nobusCommented:
tx for feedback; for partition handling, i use the bootit-bm (also to set it active)
free for this job
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