Hi,
Another way to tell whether your computer or laptop is this instance will work correctly on W10 is to check their website driver support download page. Checking for your Model laptop you posted above in Post #3, I get this page for the X8100:
Link Removed
Nowhere on this download page are there any drivers listed for W10, or even W8/8.1/8.1.1. Just looking at this tells me that this laptop might have some hardware compatibility issues with W10. Now it's possible Clevo simply hasn't caught up with updating all of their model's drivers to W10 level, so maybe you can wait a few more months. However, W10 has been out since July 29th 2015; so what are they waiting for?
The other bulletproof method that works for us IT types is to pick up the phone and call Clevo support and ask them the question on the phone--I know, actually talk to a real human being!

After doing phone Tech Support for over 30 years I found out that often the Techs who man the Tech Support lines of computer makers often have special insider access to databases that are not published publicly on the Internet. The question
"is my X8100 laptop capable of running W10?" may give you a response such as they never intend to update their drivers for that model ever. Or another possible response is that they may ask you to wait a few months as their driver update team is behind on updating the hundreds or thousands of older models to the W10 version. Once those are released, they may indicate your Model should work. I would take that as a positive statement, and not junk that computer just yet--wait for them to get out their new W10 drivers and give it a go!!

You may get lucky.
On the other hand if they say definitively absolutely say that model will never work with W10, that's pretty much it for that laptop & W10! sorry to say.
You could always load a Linux version like Ubuntu on it and use it for general purpose computing??

It appears to be a very expensive and well-made gaming laptop, so that's up to you.
Hope that gives you some insight into this issue.
Best,
<<<BIGBEARJEDI>>>