Hello Shiro Gamer,
Good to see you in Microsoft Community.
After searching for relevant information on the Apple official website, I found that only Apple devices released after 2012 can use Boot Camp Assistant to install Windows. Additionally, Windows 10 was introduced in 2015. Therefore, your current device hardware may not support installing Windows 10. Even if you manage to install it, there could be compatibility issues due to the lack of appropriate hardware drivers. Visit Install Windows 10 on your Mac with Boot Camp Assistant - Apple Support for more details.
Disclaimer*: This is a non-Microsoft website. The page appears to be providing accurate and safe information. Watch out for ads on the site that may advertise products frequently classified as PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.*
If you want to confirm further information, I suggest you contact Apple's official tech support as they have the best support resources for this type of hardware.Hope your problem will be solved soon!
If anything is unclear, please do not hesitate to let me know.
Best Regards,
Mosken_L - MSFT | Microsoft Community Support Specialist