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

24 Oct 2016   #11

Windows 7 x32

jumanji, thanks for looking at the thread. I wasn't expecting that bad a news but I suppose there's nothing to do but try to save it somehow.

I have done as you said and downloaded Partition Wizard Bootable CD and Rufus and created bootable USB stick however the computer doesn't recognize it (this was always the case even when computer was healthy it didn't recognize booting from usb).

Is it ok if I create bootable Wizard Partition DVD/CD instead of USB?

Thank you,

My System SpecsSystem Spec
24 Oct 2016   #12
Layback Bear

Windows 10 Pro. 64/ version 1709 Windows 7 Pro/64

You should be able to use a CD/DVD player as long as you set it boot. You could try to get the CD to boot using your boot selection key. I don't list your system specs so I can't look that up.
My Asus boards use the F8 key for boot selection.
Try just installing the CD/DVD and turning on the computer. It might just pick it up and boot because it can't find anything else to boot from.

Because you did this in your post #1
After this I boot from Win DVD and open Command Prompt
You should have no problems using a CD/DVD with the programs that jumanji recommended.
My System SpecsSystem Spec
24 Oct 2016   #13

Windows 7 Home Premium 32 bit

As Layback Bear suggested your motherboard manual should indicate the key to be pressed to bring the boot menu.

Otherwise you can enter into BIOS setup and set USB as the first boot device, save and then it should boot from your pendrive.

If your PC is UEFI ( not standard Bios) then you should set it to legacy compatibility mode and disable secure boot.

If you do not want to spend time on any f this or you are not confident, then of course burn the ISO to a CD and boot from the CD to run Partition Wizard.
My System SpecsSystem Spec

28 Oct 2016   #14

Windows 7 x32

I apologize for the delay. I've run Partition Wizard and these are screenshots that first appear. Of the three partitions shown, Windows installation was originally on second (97.56 GB) partition.


Attached Thumbnails
Error code = 0x490 due to power cut, now Windows completely missing!-img_20161028_215521.jpg   Error code = 0x490 due to power cut, now Windows completely missing!-img_20161028_215530.jpg  
My System SpecsSystem Spec
12 Nov 2016   #15

Windows 7 x32

Since running a partition wizard I haven't done anything, in fear I'll mess the computer even further. If someone on the forum knows what I should do to attempt to restore windows or can recommend an expert I'd be grateful.

My System SpecsSystem Spec
13 Nov 2016   #16

Windows 7 Home Premium 32 bit

Please wait. I have sent a request PM to DavidE to have a look at this problem.
My System SpecsSystem Spec
13 Nov 2016   #17

Multi-Boot W7_Pro_x64 W8.1_Pro_x64 W10_Pro_x64 +Linux_VMs +Chromium_VM

Hi Jumanji,

I've never encrypted a disk drive with TrueCrypt, so i have no experience
I think you have a good idea about changing the partition type to NTFS with Partition Wizard.
I also think the 100 MB partition should be set as Active.
I think that is the "System Reserved" partition with the bootloader.
I believe Windows will auto assign the letter C to the OS partition when it starts up.
That's the way it works for multi-boot PC's, each OS gets the letter C when it starts up.

I don't know if this quote about TrueCrypt helps answer the question about NTFS partition type.

Is it possible to change the file system of an encrypted volume?

Yes, when mounted, TrueCrypt volumes can be formatted as FAT12, FAT16, FAT32, NTFS, or any other file system. TrueCrypt volumes behave as standard disk devices so you can right-click the device icon (for example in the 'Computer' or 'My Computer' list) and select 'Format'. The actual volume contents will be lost. However, the whole volume will remain encrypted. If you format a TrueCrypt-encrypted partition when the TrueCrypt volume that the partition hosts is not mounted, then the volume will be destroyed, and the partition will not be encrypted anymore (it will be empty).
Source: Frequently Asked Questions - TrueCrypt
My System SpecsSystem Spec
13 Nov 2016   #18

Windows 7 HP 64

Rona, did you create the rescue disk?
I think that the HDD wont be able to recover the encrypted disk as Rona tried to restore the MBR.
This article explains how the encryption works: Encryption Scheme - TrueCrypt Documentation
My System SpecsSystem Spec
14 Nov 2016   #19

Windows 7 x32

Jumanji and David, thank you for trying to solve this, I know it's a mess.

Megahertz, I used to have a rescue disk, from five years ago, and lost it in the move so all I have now is a password.
My System SpecsSystem Spec
14 Nov 2016   #20

Windows 7 Home Premium 32 bit

Thanks @DavidE for chipping in.

From your clipping and also MegaHrrtz07's reference in previous post, I presume that it is really going to be difficult to resolve the OP's problem without a real understanding of how TrueCrypt works and what changes it makes to the system bootsector and volume bootsectors. So I have deferred my idea of changing the Partition Type ID to NTFS ( though in a normal case ( without encryption ) I would have done it). Let me not mess it up further.

And @Rona88, none of us seem to know much about TrueCrypt. Now tell us how you went about truecrypting your drive.

As Megahertz queried did you create a TrueCrypt Recovery Disk? EDIT: You have already answered which I saw only after posting.

Did you encrypt the whole system drive to prevent anyone else booting your PC or did you encrypt only the third volume which presumably is your datadrive.

Do you know how all the three partitions on your drive, the 100MB System Reserved Partition, the 97.6GB system partition and the third large 833 GB partition appeared in Windows Disk Management when the system was working? I am asking about the File System. Did these appear as "Other" or"NTFS?" ( PW shows it as Other now.)

How were you accessing your truecrypt drive?

I am hoping that someone with hands-on experience with TrueCrypt should be able to pickup from your answers.
My System SpecsSystem Spec

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

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