Renaming/deleting impossible filenames in Windows 7

By default, every file and directory under an NTFS filesystem has two names by which it can be accessed: the long filename and the short filename. Short filenames follow the 8.3 naming convention which you may be able to use to delete these files by using the Command Prompt. For example:

C:\>del C:\example\IMAGES~1.JPG

You can learn the short name for a file by issuing this command dir /X (that's a capital X.)

Since short filenames are an optional feature of NTFS it's possible that these files don't have short names. In which case, you might be able to do it by using the extended length path form of the files' paths. You do this by prepending \\?\ to the full path of the file, enclosing it with quotes:

C:\>del "\\?\C:\Example\images\receipt.jpg"

If all else fails, go and download another Linux Live CD and delete them from there. There are smaller distros available if an Ubuntu download is too large.