You will have to check the support page for the device you're having. Only the developer is capable of releasing an updated driver for Windows 10. There is also an official statement from Dell regarding this product:
"Dell has not confirmed that this product can upgrade to Windows 10. Some drivers, firmware, applications, and connected devices may not work as you would expect."
You will have to keep visiting the following page, to see when Dell releases drivers for Windows 10: http://www.dell.com/support/home/us/en/19/product-support/product/xps-l502x/drivers/advanced
