Curious, that you didn't just get the Microtel, without any OS, but whatever. What kind of error or dialog, are you seeing from the MS Operating system? Is it just unable to create the MS partitions, because it can't delete the lindows/ linux partitions? If this is just because it doesn't know what to do with the linux partitions, you may be able to borrow a 'disk one' of a linux distribution, like Mandrake or Redhat, do an 'expert' install and use the disk partitioning program to remove all the linux partitions, then write back the partition tables. That should produce an empty disk. I say should, because I have zero experience with Lindows. Did they give you a Lindows install disk? It may or may not have a similar disk partitioning program, that you could access. If you know what brand hard drive is in there, you may be able to go to the manufacturers site, and down load their utility program, to wipe the disk clean. All depends upon the error you are receiving.
BTW ' BEST OPERATING SYSTEM' ????' Really?