[step="" title="The problem"][/step]
My HP PC doesn't start. After having selected the OS to boot (Ubuntu or Vista) an "Windows Boot Manager" page is displayed,warning that the OS didn't start
[step="" title="Info displayed for Windows"][/step]
Info: Windows failed to load because the system registry file is missing or corrupt
[step="" title="Info displayed for Ubuntu"][/step]
Info: Failed to load selected file. File is corrupt or missing
[step="" title="What I tried"][/step]
"Windows startup repair tool"
Arguing that it is impossible to access files (both in Ubuntu and in Vista) because something has been corrupted in some of the data used to find those files, I ran "Windows startup repair tool", but it did'nt work. The tool wasn't able to perform automatic repair.
"Paragon Simple restart wizard"
Then, I ran Paragon "Simple restart wizard", which can restore the MBR from a previously saved copy (I don't have one!). Neverthless, the tool allowed me to browse the Directory of drive C:; I argue that there is a way to access at least file names (not sure, up to now, that also file contents are accessible).
[step="" title="What is consolidated, IMHO"][/step]
the MBR has been loaded
the Boot sector of the active partition (in drive C:) has been loaded
the BOOTMGR has been loaded
the BCD file has been read
maybe the \Windows\System32\Winload.exe file has been run
the Directory structure is safe
I cloned drive C: a few months ago; so some corrupted files could be restored from that old copy
[step="" title="What else should I try to get rid of this stressing situation?"][/step]