|You can't access files that are no longer there. |
If you deleted a user account, ALL the files and folders for that user that were in C:\Documents and Settings\That user's name\that user's subfolders, and the parent \That user's name folder, are DELETED. They DO NOT show up in the Recycle Bin.
You cannot get all those files and folders back unless you use some sort of un-delete program immediately after you deleted the user.
If you want to get some of those files and folders back, the longer you wait after having deleted the user, the fewer files and folders you will be able to successfully recover, because Windows will have overwritten the location of where the file or folder was located.
If it's been a while since you deleted the user, there's no point in trying an un-delete program - the data you wanted to restore is probably not recoverable.
Most of the time when you delete something in Windows, it's sent to the Recycle Bin. It isn't actually deleted for good from the drive until you empty the Recycle Bin.
Deleting a user account doesn't send that user's data to the Recycle Bin,
When Windows deletes a file for good, the first character of the file's location is changed to indicate to Windows that the space formerly occupied by the file is available for data. The rest of the data is still there until it is overwritten by other data, but the longer you wait, the more likely it's been overwritten.
A complication is the un-delete program will also find files and folders on the same partition, e.g. C:, that you intended to delete and had emptied the Recycle Bin of.