M17x R3, repaste, BSODs, Windows 10

Alienware M17x R3- Was running on Windows 10 for well over 2-3 years without issue.

Did a cleaning and repaste- Hitting the power button after unplugged to ensure no electrical issues during.

Upon plugging it back in & restarted I was stuck with blue screens for hours and they continued for days.

I am told my system does not support windows 10  here on the 2011 M17x R3 driver page. DELL-Chris M> but I find this hard to believe because many people Iv'e known that had similar/exact laptops as well as currently everything on sites like eBay all have Windows 10. 

Any explanation for this or even better on how to fix it would be desperately appreciated!