That means that your Quicken file was actually in Recent documents.
Have you looked in the Recycle Bin?
If they are in the Recycle Bin you can restore them.
After you have restored the Quicken File (actually several files, I have
five files for my Quicken 2006), Please move them to your Quicken Folder or
create a Quicken folder on your Data partition.
You can then open them in Quicken with the File > Open command. Navigate to
where you moved the files to.
What about Backup files?
Backup Quicken files are usually in a separate folder named "backup". Do a
search with Start > Search for 'backup' and/or the name you had for the
Quicken files. Search for .qdf to find the main data file .qdf is one of the
extensions for the Quicken data file.
You should have a regular system of computer file backups.
External USB hard drives and backup software are pretty cheap in comparsion
to the amount of information you lose when your computer's Hard Drive
crashes. (Or you do a bonehead stunt :)