|Yeah, ancient humor can still be funny!|
The only thing I can suggest is that you download a Linux Live CD, such as Puppy Linux. You burn the "image" to a CD, set your CD drive ahead of the C drive and in BIOS then boot with it in the drive.
This runs Linux from the CD without Windows or even your HD being involved. However you can "access" your HD and nothing should be hidden from you. You can then make your deletions, shut down, pull out the CD and you are back to WIndows but without those files. I've nipped out locked files that way before now. Careful what you delete tho LOL
Note that everything is single click in Linux. Live CD's can be great for getting stuff off your HD to a flash drive (or whatever) too, if ever Windows software gets screwed up.
What's the time?