As I mentioned, I'm not trying to question the legality of this whole thing. Only if it will work.
You should use the version of Windows that belongs with the laptop, the one that came with it. You will save yourself all kinds of problems if you use that, licensing among them, but also drivers that you will have to find (and laptops have a lot of special ones for F keys and modems, for starters).
Try Ctrl+F11 on boot (unless you have destroyed the copy of Windows on the hard drive that you paid for when you bought the machine).
If that doesn't work, I'll help you try to install the other version. But you will first need to remove the special partition on the hard drive. That will mean throwing away the copy of Windows that came with the machine (though you can buy cheap recovery disks from Dell if you ever need it later).
By the way, why isn't Windows booting on that machine? Are you sure that there is not a hardware problem? "Viruses and malware" would not prevent a machine from going past BIOS.
If you can't get past BIOS by any method at all, I'd start with RAM. If there is more than one stick, try removing them one at a time to see if one is defective and the machine makes it further.
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If you have the time and inclination, this boot CD (or USB key if you have one handy) will be useful now and later. You can use it to clear the hard drive for installation, to remove the non-standard partitions, and later, to recover data and make repairs. If it works, you will also know that there is no hardware problem with the machine.
Parted Magic disk partitoning tool (Bootable CD image)
If you prefer a bootable USB key, download and run
Linux Live USB Creator. Choose the Parted Magic distro, and it will download it and automatically create a bootable USB key.
This CD (or key) contains many useful tools. You can partition, recover files, recover lost partitions, make disk images (by several different methods), transfer files between media, scan for viruses (It can serve as an Alternative Trusted Platform for search and elimination of rootkits and bootkits), examine and benchmark hardware, access the internet, and much more.