A friend's HP desktop computer recently got infected with a virus, and we had to restore from Acronis Backup. The restore process went well, but when we tried to boot up, we got this error message (see attached picture).
So we started the computer with the Windows install disc and did the startup repair. It worked, but I'd like to get a real understanding of what was wrong with the bootup process. Was it missing a file of some sort?
Thanks in advance.