In reply to Siward:
> Thousands of files came up (worth being specific when you try to recover things- I limited the search to .doc files). Amongst them were multiple copies of the file I wanted, at various stages throughout its development, so I saved a recent one and- job done.
Yep, that's something that is easy to miss. There is an option in PhotoRec to filter what it recovers by deselecting what you don't want to bother recovering, which can speed the process up. So, if it's just a .doc the OP wants, then de-select everything else.
> but my feeling is that hard disks are so huge these days that you'd be unlucky not to find a cpoy of what you want
You have a point, to a certain extent - but you only have to be unlucky once.
And since Sonya has already said she has two computers, then she has the facility there already to do it, so I'd play safe.
Even if you only have one computer, and it's a desktop, in these circumstances, and it was my important document, I'd buy a 2nd hard drive, install an OS onto that, and then use that to attempt recovery from the other disk.
Disks are £20 or so, 2 years worth of work is worth a lot more than that.
For what it's worth, for all techies on here, I have one of these USB / eSata SATA docking bays by StarTech for plugging 2.5 or 3.5in sata drives into, which is perfect for recovering data from (or to) (and for loads of other purposes, too). It's very, very useful at work.
http://www.misco.co.uk/product/153813/Startech-SATA-Docking-Station