Recovering deleted files
One of the things that I hope I don't have to do often is to try and recover accidentally deleted files because sometimes you just fail to recover them and that may not be so good if they are important files.
I have always carried around two tools on my USB key to recover accidentally deleted files but fortunately don't always have to use them until this morning when I was trying to recover a file.
To recover deleted files on Windows I use Restoration and also FreeUndelete. I make sure I have two just in case the other one fails but they work nearly exactly the same in the end for me its a case of preference that determine which tool to use.
With Restoration you don't have to install the tool on your computer but you can run the executable from a USB key or still from a floppy disk. FreeUndelete has an install program which you can install onto the USB key.
These tools are quite useful especially when you have just emptied the Recycle Bin or if you have deleted using shift-delete thus by-passing the Recycle bin. Better still you can also recover files deleted from a USB key. My experience has shown me though that it's faster to recover files deleted from a USB key using Restoration than FreeUndelete.
I have both NTFS and FAT32 partitions on my system and the tools can recover from both these file systems. A few times I have failed to recover some files especially just after emptying the Recycle bin and so its if possible I try to make sure I am pretty sure I know what I am deleting and will not need to run around trying to do the recovery process.
There are some commercial applications that do the same thing but I cannot comment on them because I have never used them.