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Windows 7: Error code = 0x490 due to power cut, now Windows completely missing!

22 Oct 2016   #1
Rona88

Windows 7 x32
 
 
Error code = 0x490 due to power cut, now Windows completely missing!

Hello everyone,

I have a problem I attempted to solve by following a tutorial but was unsuccesful.

My computer was installing windows updates when the power went out. From that moment, when restarted, it offer me a choice of
1. attempting startup repair
2. loading windows as if nothing happened.

When I tried 2. it would be stuck on loading windows logo until I restarted.

I tried Startup Repair and got 'Windows cannot repair this computer automatically'.

Startup Repair
Diagnosis and repair details:

Root cause found:
--------------------
Boot sector for system disk partition is corrupt.

Repair action: Boot sector repair
Result: Failed. Error code = 0x490
Time taken = 182568 ms
-----------------------
-----------------------

After this I googled 0x490 error and followed these instructions:

- I opened Command Prompt and entered 'BootRec.exe/fixmbr'

It said that operation was performed successfully however since I did this the computer cannot find an operating system at all!

When I restart it says Operating system missing.

After this I boot from Win DVD and open Command Prompt

I have since attempted this command 'bootrec.exe/fixboot' separately on all 3 partitions of the disk (while only that partition active).

After that I tried 'BootRec.exe/Scanos'.

In all 3 cases the massage I get is:
Total identified Windows installations: 0

This makes it impossible to try RebuildBcd.

I have also attempted running startup repair 3 times on each partition, unsuccessfully.

What can I do?

Thanks very much.


My System SpecsSystem Spec
.
22 Oct 2016   #2
Megahertz07

Windows 7 HP
 
 

From win 7 installation disk at command prompt run chkdsk /r
I would also run sfc /scannow.
Then try startup repair.
My System SpecsSystem Spec
22 Oct 2016   #3
Rona88

Windows 7 x32
 
 

Megahertz07 I did as you said however both commands were unsuccessful. I'm posting a pic with responses.

The drive is encrypted with Truecrypt so is that why chkdsk /r couldn't be performed? Thanks for your help.


Attached Thumbnails
Error code = 0x490 due to power cut, now Windows completely missing!-0img_20161022_203435-01.jpg  
My System SpecsSystem Spec
.

22 Oct 2016   #4
Megahertz07

Windows 7 HP
 
 

Sorry, my omission, you must go to disk C:
From win 7 installation disk at command prompt run chkdsk C: /r
My System SpecsSystem Spec
22 Oct 2016   #5
Rona88

Windows 7 x32
 
 

I tried it,


Attached Thumbnails
Error code = 0x490 due to power cut, now Windows completely missing!-0_img_20161023_053423.jpg  
My System SpecsSystem Spec
23 Oct 2016   #6
Megahertz07

Windows 7 HP
 
 

Rona, your disk isn't formatted (RAW).
As you said that you were installing Windows updates, it can be possible that it's a logical problem and can be fixed or can be that your disk died.
Don't try to fix it, or you may loose all data on it.
Ask Jumanji for help. He is the disk guru. Send him a private message.
http://www.sevenforums.com/member.php?u=163641
My System SpecsSystem Spec
23 Oct 2016   #7
Rona88

Windows 7 x32
 
 

Something is clearly wrong as the disk has more than 900 GB of content. Megahertz07 thanks for trying to help me and, if it isn't too much to ask, could you put me in contact with Jumanji as I don't have enough posting privileges to send a PM. Thank you.
My System SpecsSystem Spec
23 Oct 2016   #8
torchwood

W7 home premium 32bit/W7HP 64bit/w10 tp insider ring
 
 

Message sent.

Roy
My System SpecsSystem Spec
23 Oct 2016   #9
Rona88

Windows 7 x32
 
 

Thanks Roy.
My System SpecsSystem Spec
23 Oct 2016   #10
jumanji

Windows 7 Home Premium 32 bit
 
 

As far as data recovery is concerned, it may well be impossible since you have encrypted the drive with Truecrypt. Your only hope accessing any data in your system drive is to repair and restore your OS. That in any case is not my cup of tea and beyond my thought process. A complete system backup could have saved you from your current situation more so since you have encrypted the drive.

What you can do now is to present a pictorial representation of your drive and wait for other experts to work on it..

Download the Partition Wizard Bootable CD Free Edition version 9.1 ISO ( 32 bit or 64 bit as per your system OS) from Free download Magic Partition Manager Software, partition magic alternative, free partition magic, partition magic Windows 7 and server partition software - Partition Wizard Online

Download Rufus from Rufus - Create bootable USB drives the easy way

Use that PW ISO and create a bootable PW pen drive with Rufus.

Boot your PC from that pendrive using onetime boot menu and run Partition Wizard.

It will show your drive.

Take a snapshot using your mobile or any other camera and post the screenshot.
My System SpecsSystem Spec
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