Microsoft Not Planning Legal Action Against Ylmf OS
Late last year, news got out that an infamous Chinese pirate has moved beyond pirating Windows, moving on to creating an Ubuntu distribution that is almost a pixel-perfect copy of Windows XP, called Ylmf OS. Ars Technica contacted Microsoft about possible legal actions, but it seems Microsoft isn't really bothered by all this.
If you look at the screenshots below, then you can see just how well this clone has been made. Quite a lot of craft has gone into this - even the login screen looks perfect.
Obviously, Microsoft can do little in the sense of stopping piracy here, since this is not their code. Still, the company could take the other intellectual property route, namely the one of copying copyrighted imagery and GUI elements. Ars spoke to Microsoft, and the Redmond giant has no plans to do anything about Ylmf OS.

"We have not really evaluated the code here, but assuming that this is a Linux implementation, we agree that the existing laws against software piracy are unlikely to apply here," Microsoft told Ars Technica, "So we'd have to look to the protection offered under intellectual property law generally in the relevant jurisdictions. But it would be difficult to talk about the legal options in a general sense as each instance is unique, depending not only on the local IP laws in play (in this case in China) but also the technical implementation itself. We'd need to drill down into the specifics to understand better what Microsoft IP rights may be at stake here."

The company added that it currently has no plans to drill down: "While we can't comment on the future, we have no current litigation efforts in place about this."

What is Ylmf OS?
YLMF open source operating system (Ylmf OS) English Edition is released!The interface operation is clean and clear.The adjustment and creation is based on the user's experience and usage.
We firmly believe that Linux can do as well as Windows through our efforts and give customers more choices.

System Requirements:
Bare Minimum
- 300 MHz x86 processor,128 MB RAM
- At least 4 GB of disk space
- VGA graphics card capable of 640x480 resolution
Recommended
- 700 MHz x86 processor
- 8 GB of disk space,512 MB RAM or bigger
- Graphics card capable of 1024x768 resolution or higher

file: Ylmf_OS_3.0.iso
md5sum: 919794e3d9b035a5a895c3e1d1818f95
sha1sum: 6e672a667155e442a612f69ccba1bf6c44752d8d