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If that fails and you positively don't care of what is in there, make an ubuntu live cd, boot from it, chose to not install it on the machine, after it loaded everything navigate to the drive with the folders, delete the folders.

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I recommend PC Linux (yes I know its Ubuntu based) because it has an easy to use windows like GUI. It runs quite smoothly and who knows you might like it. I would also recommend running a virus/malware scan with a bootable rescue cd such as Kasperski or AVG Rescue. A bootable CD means Otherwise in use files will be free to scan and repair. All are free to use.

So cool ice cubes are jealous » PCLinuxOS
Kasperksy Rescue Disk 10
AVG | Rescue CD | PC Rescue and Repair Toolkit