Data recovery after OS failure
Despite the constantly improving reliability of operating systems, users still sometimes experience operating system failures. An operating system may fail due to the corruption of the OS logical structures (caused either by computer viruses or human errors) or due to the damage of a storage on which the OS is installed (caused by hardware failures, system breakdowns, instantaneous power failure resulting in file system structures corruption). The corrupted operating system is unable to boot. A failed operating system will attempt to start and may progress to a certain point, freeze and not boot any further. It may attempt to boot and then stop with a blue screen or error message as well. But if the computer goes to a black screen very quickly with the "Invalid System Disk" or "Please Insert Bootable Media" message, particularly if the machine doesn't report the presence of the hard disk drive, then it’s a failed disk not a failed operating system. In this case, it's strongly recommended to take the disk to data recovery specialists for the examination.
If you're facing the problem of data access due to the operating system failure, there can be to solutions to it. You may connect the hard drive to another computer in the way described in How to: Connect IDE/SATA drive to a recovery PC article or use the UFS Explorer Backup and Emergency Recovery CD to boot your computer. If you open the hard drive and the data on it is intact, you may simply copy your files to a safer data storage. SysDev Laboratories offers the UFS Explorer software as an efficient solution for such situation. The software employs effective mechanisms for searching of lost or corrupted files on a failed operating system. With support of a great variety of operating systems and a wide range of file systems, the software will be a universal solution for recovery of lost files from any operating system.