Recovering Win7 partn. after deleting its 100 MiB boot partn

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Recovering Win7 partn. after deleting its 100 MiB boot partn

Postby sigi » Wed Aug 24, 2016 9:29 am

sigi wrote in viewtopic.php?f=2&t=2257:

> My system is as follows:
>
> HD-0:
>
> 6 MiB Free Space in front
> Windows 7 (my main working partition)
> Linux Mint
> EMBRM at the end
>
>
> HD-1:
>
> 8 MiB Free Space in front
> Extended
> Windows 7 (newly installed for upgrading to Win10
>
>
> I use BIBM for partioning. My BIOS is conventional, no UEFI.
>
> When trying to upgrade my HD-1 Win7, the PC booted (as expected) no longer
> into the BIBM boot menu but directly into the Win7 to be upgraded.
>
> The upgrade process has stalled (for hours) at 99 % installation progress.
>
> At this time I wanted to know what the partitions would look like. So I
> first made a Backup from my EMBRM using TBWinRE, then rebooted from my
> BIBM-CD and accessed BIBM. A warning popped up telling me that there were
> overlapping partitions. I opened Work with Partitions and saw that there
> was now a 100 MiB partition in front of my Win 7 working partition.
>
> Both partition names had the same letter "E" (if I remember correctly)
> attached to them obviously illustrating the overlap.
>
> I was not aware of the EFI thing because I thougt myself safe in a pure
> BIOS environment. So I unsuspectingly deleted the 100 MiB partition
> without checking any option. I thought I could easily undelete it if the
> need arose.
>
> Now, as a consequence, I cannot boot either of the two Win7 partitions:
>

The thread quoted in the first line deals with rendering bootable again my main Windows 7 working partition on HD-0 or at least recovering its user data. In the line of action followed there I finally deleted the 100 MiB partition checking the "Clear Boot Sector" option.

-----------------------------------------------------------------------------------------------------------

The present thread shall help me to make bootable again the Win7_Koy partition on HD-1 (the one newly installed for upgrading to Win10).
I have already tried in vain several consecutive runs of WinRE. BIBM says the partition is bootable. BIBM can also resize it without changing its size. But when I tried to boot the "resized" partition I got a black screen with the message "This partition does not contain an Operating System. If you are about to install a new OS then insert the installation diskette into drive A:
Press any key to run the BIOS bootstrap loader..."

When I open "BCD Edit" I get "No BCD store"


I WOULD LIKE TO POSE TWO QUESTIONS:


QUESTION 1

Maybe I will resort to restoring the full backup I have made of HD-0 just after deleting the 100 MiB without checking anything. This backup would give me the opportunity to undelete the 100 MiB. My question is whether I can restore the backup over the existing HD-0 without prior deletion of the data contained there.


QUESTION 2

How can I find and position the correct BCD that would boot the partition? I would prefer this course of action to restoring the full HD-0 backup.
Intel Core i3 540 | 2 SATA-HDD with 640 GB each | Win7 Pro x64
sigi
 
Posts: 198
Joined: Sat Jan 14, 2012 6:59 pm

Re: Recovering Win7 partn. after deleting its 100 MiB boot partn

Postby TeraByte Support » Wed Aug 24, 2016 6:59 pm


-----------------------------------------------------------------------------------------------------------

The present thread shall help me to make bootable again the Win7_Koy
partition on HD-1 (the one newly installed for upgrading to Win10).
I have already tried in vain several consecutive runs of WinRE. BIBM says
the partition is bootable. BIBM can also resize it without
changing its size. But when I tried to boot the "resized" partition I got a
black screen with the message "This partition does not contain an Operating
System. If you are about to install a new OS then insert the installation
diskette into drive A:
Press any key to run the BIOS bootstrap loader..."

>> bootable just means the bootable flag is set in the boot sector so the
>> mbr code would boot from it. What it boots or if it actually boots
>> something is completely different.

When I open "BCD Edit" I get "No BCD store"


I WOULD LIKE TO POSE TWO QUESTIONS:


QUESTION 1

Maybe I will resort to restoring the full backup I have made of HD-0 just
after deleting the 100 MiB without checking anything. This backup would give
me the opportunity to undelete the 100 MiB. My question is whether I can
restore the backup over the existing HD-0 without prior deletion of the data
contained there.

>> yes if it's the same location.

QUESTION 2

How can I find and position the correct BCD that would boot the partition? I
would prefer this course of action to restoring the full HD-0 backup.

>> See http://www.terabyteunlimited.com/kb/article.php?id=492


TeraByte Support
 
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Re: Recovering Win7 partn. after deleting its 100 MiB boot p

Postby sigi » Thu Aug 25, 2016 3:24 am

TeraByte Support wrote:
>
> QUESTION 2
>
> How can I find and position the correct BCD that would boot the partition?
> I would prefer this course of action to restoring the full HD-0 backup.
>
> >> See http://www.terabyteunlimited.com/kb/article.php?id=492


http://www.terabyteunlimited.com/kb/article.php?id=492 reads
under "Accessing BCD Edit" para 4:

> Click the BCD Edit button.  The BCD Edit window appears.
> Note: If you click the BCD Edit button and get a "No BCD Store"
> error message, you have probably selected the wrong partition.

I do get a "No BCD Store" error message but I am sure it is not the wrong partition. Can't the "No BCD Store" error message in my case have something to do with the deletion (Clear Boot Sector) of the 100 MiB partition and if so, couldn't you give me some guidance on how to create a new BCD in a Terminal? Which Terminal in BIBM or TBWinRE would be appropriate for this task?
Intel Core i3 540 | 2 SATA-HDD with 640 GB each | Win7 Pro x64
sigi
 
Posts: 198
Joined: Sat Jan 14, 2012 6:59 pm

Re: Recovering Win7 partn. after deleting its 100 MiB boot p

Postby CyberSimian » Thu Aug 25, 2016 3:57 am

I recently re-installed Win 10 on my new laptop, and then went through the process of converting from GPT (Guid Partition Table) to MBR (Master Boot Record). This process includes deleting the EFI system partition (260 MiB, for UEFI boot), and the Microsoft reserved partition (16 MiB), after which the system is not bootable. This seems similar to your accidental deletion of the 100 MiB Microsoft reserved partition on HD-0.

To make the system bootable, I booted the Windows Recovery USB drive, and followed the instructions in the following Terabyte Knowledgebase article; the relevant parts for you would be towards the end, starting at step 16:

http://www.terabyteunlimited.com/kb/article.php?id=580

If you have a Windows Recovery USB drive, this might work. But perhaps Terabyte should OK this before you try it? I am not an expert, and I don't want to give you bad advice.

-- from CyberSimian in the UK
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Re: Recovering Win7 partn. after deleting its 100 MiB boot p

Postby TeraByte Support » Thu Aug 25, 2016 5:41 pm

if you clear the boot sector the partition is not accessible. If you
deleted just that partition using just delete, you can undelete. If you use
clear boot sector, you can't undelete.

"sigi" wrote in message news:12317@public.bootitbm...

TeraByte Support wrote:
>
> QUESTION 2
>
> How can I find and position the correct BCD that would boot the partition?
> I would prefer this course of action to restoring the full HD-0 backup.
>
> >> See

TeraByte Support
 
Posts: 2310
Joined: Thu May 05, 2011 3:37 pm

Re: Recovering Win7 partn. after deleting its 100 MiB boot p

Postby sigi » Fri Aug 26, 2016 10:22 am

sigi wrote in posting.php?mode=quote&f=2&p=12309:
>
> The thread quoted in the first line deals with rendering bootable again my main
> Windows 7 working partition on HD-0 or at least recovering its user data. In the line
> of action followed there I finally deleted the 100 MiB partition checking the
> "Clear Boot Sector" option.
>

TeraByte Support wrote in posting.php?mode=quote&f=2&p=12332:
> if you clear the boot sector the partition is not accessible. If you
> deleted just that partition using just delete, you can undelete. If you
> use clear boot sector, you can't undelete.


Why do you use conditional clauses? I have already stated in my first posting that I checkmarked "Clear Boot Sector".

My question went one step further than asking if I can undelete. I wanted to know whether it would be possible to write with your guidance a new BCD in a Terminal and if so, which Terminal in BIBM or TBWinRE woud best suit this purpose.

CyberSimian gave already an adequate answer by referring me to http://www.terabyteunlimited.com/kb/article.php?id=580 beginning from step 16.
I appreciate that.

His query was to get your OK and am awaiting your answer to that too. I think this KB 580 is exactly what I am looking for. But perhaps I would need your assistance with one step or another. Problems will most certainly arise as soon as I actually follow the instructions there.
Intel Core i3 540 | 2 SATA-HDD with 640 GB each | Win7 Pro x64
sigi
 
Posts: 198
Joined: Sat Jan 14, 2012 6:59 pm

Re: Recovering Win7 partn. after deleting its 100 MiB boot p

Postby TeraByte Support » Fri Aug 26, 2016 10:40 am

This is a user supported help group, not official support and your questions
and issues are outside use of the product itself.

You're probably looking for something like
http://www.terabyteunlimited.com/kb/article.php?id=327



"sigi" wrote in message news:12341@public.bootitbm...

sigi wrote in

[
posting.php?mode=quote&f=2&p=12309
](https://www.terabyteunlimited.com/ucf/posting.php?mode=quote&f=2&p=12309)

:
>
> The thread quoted in the first line deals with rendering bootable again my
> main
> Windows 7 working partition on HD-0 or at least recovering its user data.
> In the line
> of action followed there I finally deleted the 100 MiB partition checking
> the
> "Clear Boot Sector" option.
>

TeraByte Support wrote in

[
posting.php?mode=quote&f=2&p=12332
](https://www.terabyteunlimited.com/ucf/posting.php?mode=quote&f=2&p=12332)

:
> if you clear the boot sector the partition is not accessible. If you
> deleted just that partition using just delete, you can undelete. If you
> use clear boot sector, you can't undelete.


Why do you use conditional clauses? I have already stated in my first
posting that I checkmarked "Clear Boot Sector".

My question went one step further than asking if I can undelete. I wanted to
know whether it would be possible to write with your guidance a new BCD in a
Terminal and if so, which Terminal in BIBM or TBWinRE woud best suit this
purpose.

CyberSimian gave already an adequate answer by referring me to

[
http://www.terabyteunlimited.com/kb/article.php?id=580
](http://www.terabyteunlimited.com/kb/article.php?id=580)

beginning from step 16.
I appreciate that.

His query was to get your OK and am awaiting your answer to that too. I
think this KB 580 is exactly what I am looking for. But perhaps I would need
your assistance with one step or another. Problems will most certainly arise
as soon as I actually follow the instructions there.

TeraByte Support
 
Posts: 2310
Joined: Thu May 05, 2011 3:37 pm

Re: Recovering Win7 partn. after deleting its 100 MiB boot p

Postby sigi » Sat Aug 27, 2016 10:52 am

I deleted the text of the posting that was previously at this place because this text was nothing other than a quotation of the preceding posting from Terabyte. Perhaps this text had been saved because I pressed the Submit button inadvertently instead of the Preview button.
Last edited by sigi on Sun Aug 28, 2016 4:54 am, edited 1 time in total.
Intel Core i3 540 | 2 SATA-HDD with 640 GB each | Win7 Pro x64
sigi
 
Posts: 198
Joined: Sat Jan 14, 2012 6:59 pm

Re: Recovering Win7 partn. after deleting its 100 MiB boot p

Postby mjnelson99 » Sat Aug 27, 2016 2:43 pm

Sigi,
Try [another] Recovery program. Not sure if it can help you.
Mary

On 8/24/2016 11:29 AM, sigi wrote:
> sigi wrote in
>
> [
> viewtopic.php?f=2&t=2257
> ](https://www.terabyteunlimited.com/ucf/viewtopic.php?f=2&t=2257)
>
> :
>
>> My system is as follows:
>>
>> HD-0:
>>
>> 6 MiB Free Space in front
>> Windows 7 (my main working partition)
>> Linux Mint
>> EMBRM at the end
>>
>>
>> HD-1:
>>
>> 8 MiB Free Space in front
>> Extended
>> Windows 7 (newly installed for upgrading to Win10
>>
>>
>> I use BIBM for partioning. My BIOS is conventional, no UEFI.
>>
>> When trying to upgrade my HD-1 Win7, the PC booted (as expected) no longer
>> into the BIBM boot menu but directly into the Win7 to be upgraded.
>>
>> The upgrade process has stalled (for hours) at 99 % installation progress.
>>
>> At this time I wanted to know what the partitions would look like. So I
>> first made a Backup from my EMBRM using TBWinRE, then rebooted from my
>> BIBM-CD and accessed BIBM. A warning popped up telling me that there were
>> overlapping partitions. I opened Work with Partitions and saw that there
>> was now a 100 MiB partition in front of my Win 7 working partition.
>>
>> Both partition names had the same letter "E" (if I remember correctly)
>> attached to them obviously illustrating the overlap.
>>
>> I was not aware of the EFI thing because I thougt myself safe in a pure
>> BIOS environment. So I unsuspectingly deleted the 100 MiB partition
>> without checking any option. I thought I could easily undelete it if the
>> need arose.
>>
>> Now, as a consequence, I cannot boot either of the two Win7 partitions:
>>
>
> The thread quoted in the first line deals with rendering bootable again my main Windows 7 working partition on HD-0 or at least recovering its user data. In the line of action followed there I finally deleted the 100 MiB partition checking the "Clear Boot Sector" option.
>
> -----------------------------------------------------------------------------------------------------------
>
> The present thread shall help me to make bootable again the Win7_Koy partition on HD-1 (the one newly installed for upgrading to Win10).
> I have already tried in vain several consecutive runs of WinRE. BIBM says the partition is bootable. BIBM can also resize it without changing its size. But when I tried to boot the "resized" partition I got a black screen with the message "This partition does not contain an Operating System. If you are about to install a new OS then insert the installation diskette into drive A:
> Press any key to run the BIOS bootstrap loader..."
>
> When I open "BCD Edit" I get "No BCD store"
>
>
> I WOULD LIKE TO POSE TWO QUESTIONS:
>
>
> QUESTION 1
>
> Maybe I will resort to restoring the full backup I have made of HD-0 just after deleting the 100 MiB without checking anything. This backup would give me the opportunity to undelete the 100 MiB. My question is whether I can restore the backup over the existing HD-0 without prior deletion of the data contained there.
>
>
> QUESTION 2
>
> How can I find and position the correct BCD that would boot the partition? I would prefer this course of action to restoring the full HD-0 backup.
>
>
mjnelson99
 
Posts: 766
Joined: Thu Aug 11, 2011 6:24 pm

Re: Recovering Win7 partn. after deleting its 100 MiB boot p

Postby sigi » Sun Aug 28, 2016 8:15 am

Mary,
thank you for your commitment and constant readiness to help and thank you for the present contribution. I may however point out two facts that may have escaped your attention due to my two current confusing threads in this forum:

sigi wrote:
>
> The thread quoted in the first line deals with rendering bootable again my main
> Windows 7 working partition on HD-0 or at least recovering its user data. In the line
> of action followed there I finally deleted the 100 MiB partition checking the
> "Clear Boot Sector" option.
>
>
> -----------------------------------------------------------------------------------------------------------
>
> The present thread shall help me to make bootable again the Win7_Koy partition on
> HD-1 (the one newly installed for upgrading to Win10).
>


The above quotation of my first posting in the present thread shows that your posting belongs to the other thread (viewtopic.php?f=2&t=2257). I admit that it is confusing on my part to start both threads with almost identical texts.

If you have a look at the other thread you will see that the data recovery issue is solved :D. I do not need a data recovery tool any more.


While speaking of me confusing readers I may kindly ask you as well as other members to not use full quotations because this can render threads almost unreadable especially if the quoted postings are very long and nested as the one you quoted here. In your case no quotation was needed at all and your posting could have consisted of 3 lines instead one to two pages.
Intel Core i3 540 | 2 SATA-HDD with 640 GB each | Win7 Pro x64
sigi
 
Posts: 198
Joined: Sat Jan 14, 2012 6:59 pm

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