missing unallocated space on formatted dive

[turbinespaul]

I formatted a 250 Gb HD that had peviously had a TI8 Build 1158 Secure Zone installed. Now 20 Gb of space is now missing. How do I recover that?

[Acronis Support]

Hello turbinespaul,

Thank you for choosing Acronis Disk Backup Software (http://www.acronis.com/homecomputing/products/trueimage/).

Please download and install the latest build (1213) of the respective version of Acronis True Image which is available in the Product Updates section (http://www.acronis.com/enterprise/my/updates/) of our web-site.

Please create Acronis Report and Windows System Information as it is described in Acronis Help Post (http://www.wilderssecurity.com/showthread.php?t=55317).
Please keep formatted hard drive connected while creating Acronis Report and Windows System Information.

Please create an account (http://www.acronis.com/enterprise/my/registration/), then log in (http://www.acronis.com/enterprise/my/) and submit a request for technical support (http://www.acronis.com/enterprise/my/support/). Attach all the collected files and information to your request along with the step-by-step description of the actions taken before the problem appears and the link to this thread. We will investigate the problem and try to provide you with the solution.

Thank you.
--
Tatyana Tsyngaeva

[Menorcaman]

-{ Quote: "I formatted a 250 Gb HD that had peviously had a TI8 Build 1158 Secure Zone installed. Now 20 Gb of space is now missing. How do I recover that?" }-Hello turbinespaul,

Did you remove the Secure Zone (SZ) from the drive via the Manage Secure Zone Wizard prior to formatting it? If not, that probably accounts for the 20GB of unallocated space. Try this workaround:

- Create a temporary SZ, using all the unallocated space by moving the slider to maximum.
- Remove the SZ via the Manage Secure Zone Wizard, returning the space used to the main partition of the drive.
- Reboot and check that the 20GB has now been recovered.

If, for some reason, you've uninstalled True Image, you can carry out the above instructions after booting from the TI rescue CD.

Regards

[turbinespaul]

I don't have any unallocated space but I think I should have. My WD2500JB drive is reporting a formatted size of 233 GB with no free space. I sent Acronis TS a report and they say the drive is not missing any space. I beleive the ~18 GB of space I used for the TI secure zone has disappeared. How can this be?

[rbmorse]

Because The size of the drive on the box is based on 1000 bytes/kilobyte.

The size of the drive reported by the O/S is based upon 1024 bytes/kilobyte (computers count in base 2). So, the total actual usable capacity of the drive (before formatting and other overhead) will be roughly 2.4% less than the marketing and advertising capacity.

On top of that, formatting the drive consumes some usable disk space as do the otherwise unusable boot sectors on track 0, the file allocation table space, spare tracks the drive uses to replace defective sectors and other overhead. If you use Windows, the operating system also consumes some "system" space that comes off the top of the reported capacity of the drive.

233GB usable on a formatted drive advertised as a 250GB unit is about right.