If you've recently downloaded the latest windows 7 loader 2.0.6 and still doesn't work on your system then you probably have the UEFI motherboards. The loaders will not work on motherboards with UEFI, every time you try to activate your copy, your system won't boot no matter what you do. You may fix the boot failure but still you'll not be able to activate your copy. However there are steps that you can do, but you'll have to reformat the entire system.
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Anyways, here's how to successfully install and activate your copy.
1. Boot your system using your Windows 7 installation disc.
2. Then go to repair options then select the command prompt.
3. Next type the following sequence of command below:
diskpart
list disk
select disk 0
clean
convert mbr
create partition primary
select partition 1
format fs=ntsf quick
4. If the last command won't work, you may skip it.
5. Type exit to close command prompt.
6. Now proceed to the installation process. Start by booting using your windows 7 installation disc.
7. When you have finish installation windows 7, use the windows loader again to activate your copy.
That's it.
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