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O/T - Laptop Issues
Daddylonglegs - 12/1/12 at 09:03 PM

OK, long story, but I've managed to change the active partition on my Windows 7 Home Premium laptop

I don't have a recover disk as it was a pre-installed system. I now get the error 'Cannot find Bootmgr' at startup, straight after the BIOS screen.

I tried using a windows 7/Vista repair disc which I created on another machine, but it didn't manage to repair it.

Is there any tool I can use to change the active partition?

Thanks guys

[Edited on 12/1/12 by Daddylonglegs]


AntonUK - 12/1/12 at 09:24 PM

the old way of doing it was a DOS book disk with fdisk on it... no idea how you do it nowerdays...

a quick google search found this.. http://www.pcdisk.com/

no idea if it works?


Daddylonglegs - 12/1/12 at 09:32 PM

Thanks chap

Did some searching too and found this

Managed to get my lappy to boot to the eRecovery management partition so it's now going back to Pre-F****d OS state and I just need to transfer all my other stuff back to the users folder.

It's been running for awhile so I guess there's a lot of stuff to re-sort.

Here's hoping....


britishtrident - 12/1/12 at 10:09 PM

An alternative way that would have worked.

Using another computer download Parted Magic O.S. as an ISO file. Burn it to CD-r which will create a bootable CD. Then boot the unbootable PC from the CD and you now have the tools to change the boot partition on the PC.


Link to Parted Magic

[Edited on 12/1/12 by britishtrident]


Daddylonglegs - 13/1/12 at 09:25 AM

Thanks for the input guys.

Took a while, but I managed to get it back up and running using the method in the link I put here. Seems that Acer put a small partition aside with the recovery info on it. Once I used the DOS tool to make that the active partition, it booted from it and allowed me to start over. All my non-OS data was placed under c:/backup.

Moral to this story.....

....think before you click!!

JB