How to Recover Files
Ever try to boot up your system only to find an error message such as "Operating system not found" or try to open a program only to see a message that says, "A required file is missing or corrupt?" What about those times when you want to open an old file and realize that the file has been deleted? These scenarios are alarming but not necessarily the end of the world.
If you're wondering how to recover files, there are several different approaches. First, how to recover files related to the operating system and programs is different than how to recover files lost to deletion, accidental erasure, accidental formatting, and unexpected shutdowns.
To recover from an "operating system not found" error, you will need to reboot the PC and get into the BIOS by hitting the appropriate key during the reboot process. Look for the Primary Master to be sure the hard disk drive is showing up. If it isn't, open the PC's case and double check all connections. If it is, you will need to repair the Master Boot Record. Use your Windows XP installation CD to access the Recovery Console where you'll type in "fixmbr" and hit enter. Reboot the computer. If this doesn't work, you probably have a damaged hard disk.
If you want to learn how to recover files related to programs, you'll have a few options depending on the program in question. For example, Microsoft Office products come with a built-in repair tool that scans your system for missing or damaged program files and replaces them with clean copies.
Another way to recover from file missing or corrupt issues is to use a registry cleaner. These utilities can help correct issues related to incorrect file associations, missing DLLs, missing paths, and thousands of other potential computer errors.
As long as your data files are fine, you can recover from system and file errors even if it means reinstalling the operating system or program. But what happens when the files that are missing are your precious data files? You will either need to learn how to recover files or employ the services of a data recovery expert.
First, stop what you are doing and ask yourself a few questions. Do you have a backup? Did you empty the Recycle Bin lately? While you're thinking about these things, resist the urge to mess with your computer. Do not install any new programs. Do not download anything to your hard drive. Do not create or save any documents. Do not run any test utilities that write data to the hard drive. This is important because your missing data may still be accessible so long as no programs or data overwrite it.
If you have a current backup, restore your data as instructed. If the missing file is in the Recycle Bin, right-click it and select "restore." If not, purchase a reliable data recovery utility that runs from floppy or CD and learn how to recover files using the utility.

