You might have deleted some of your own files and got to know that it was important, you might regret for deleting it but now you have option other than regreting. There is a software which gives full support not to regret when you are in need. The name of the software is Active File Recovery. It is basically a very advanced file recovery software that I have ever seen. It recovers deleted files ofcourse and folders from an emptied recycle bin, as a result of bypassing the Recycle Bin (if you press [Shift]+[Delete] you can delete a file without taking to the very own recycle bin of your computer), files that have been lost by formatting, damaged by virus attack which is a very big issue , a malicious program, or a power failure. Anything related to file recover, Active File Recovery for Windows is the answer as it has the ability to effectively recover data as a result of having been accidentally deleted, formatted or otherwise lost. There are many types of pakages and the Enterprise package of Active@ File Recovery also includes a Partition Recovery tool. They can be launched from the bootable CD to work with a crashed or failing computer system. So what is partition recovery? It is data recovery after disk partitions loss / format / damage (you can get this on Active@ File Recovery Professional).
There is a Photos Recovery feature as well. It recovers photos, pictures deleted from flash media, or lost due to formatting a memory card.
Unbootable System Recovery: You can get this on Active@ File Recovery Enterprise installation package which contains a CD/DVD ISO image that you can burn to get a bootable CD or DVD with a lightweight version of Windows Vista (c) running in RAM (WinPE 2.0).

I think you should definitely own one or you will lose your hairs. Just kidding, you will lose your files without using it!