0xc0000225 after restoring image with CloneZilla

Hello

After successfully restoring the Windows7 image from partition 2 (/dev/sda2) to partition 1 (/dev/sda1) using Clonezilla, Windows7 is no longer able to boot and displays the following error messages:

Windows Boot Manager

Windows failed to start. A recent hardware or software change might be the cause.

[...] Info: The boot selection failed because a required device is inaccessible

To solve this particular issue, I rebooted with the Windows7 DVD and hit Repair... which didn't work. But even if it did, I can't do this every time I restore an image to test. Note that I used the same laptop to save and restore the partition, so it's not HAL-related.

Here's what the Repair screen says (poor man's screenshots):
Attachment 201071

1. Does someone know what can be the cause for this error, and
2. what can be done before saving and/or restoring an image with Clonezilla?

Thank you.

Made some progress: The original partition was 15GB but I expanded it to 20GB, which explains why Windows wouldn't boot.

Shrinking the partition back to 15GB before restoring the image did enable me to get past the error above and start Windows7.

However, it then prompted me to Repair, which took about 10mn and failed with "Windows cannot repair this computer automatically".

Any idea what I could try/should have done before cloning the partition?

Thank you.