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Before an old Windows XP installation was removed all the files from Windows partition were backed up. A new Windows XP installation was then set up at the same partition. The certificate which is used in Internet Explorer was not exported. Now we wish to obtain that certificate from backup files.

The certificate itself was actually recovered, but is not useful, because its private key could not be recovered. Is there a way to also recover private key from backup files?

The certificate was recovered by copying files from Documents and Settings\<username>\ApplicationData\Microsoft\SystemCertificates\My\Certificates to the new Windows installation.

We also tried copying all the backed up files to another partition and booting from it. However the boot process never ends, it gets stuck.

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The backup copy should have been tested before the system being completely replaced, and those sensitive certificates should have been properly exported and backed up. is your Sys Admin worth a potato? –  Lorenzo Von Matterhorn Apr 2 '13 at 13:55
    
All could be done in a more proper way, but this is a situation now. Is it possible to run backed up installation in some virtual machine? –  liberias Apr 2 '13 at 14:03
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@liberias - You should be able to restore the HDD image onto a virtual machine. –  Ramhound Apr 2 '13 at 14:26
    
Ramhound: any suggestions on how to do this? I'm trying it with VirtualBox right now. –  liberias Apr 2 '13 at 14:53

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