There's a preview released of Windows 10, for developers. I downloaded it, managed it to work, shut down got an error, started right after and all my partitions were gone.
And again, Microsoft messed up my hardware
But that's not the strangest. I also had Ubuntu .iso, I deleted every partition (all were "crashed") and installed Linux on my computer, I tried to install MS Win 10 again, but it wouldn't let me, so I thought, well, let's return to our old friend Windows 8.1, but nope, it can't be installed either. It prompts error that files are corrupt and until I provide complete files, setup can't continue. This is not a question, but this is a warning for everybody out there, don't test software on real machine, just try it on VM instead.