A black or blank screen in Windows can be caused by different factors, such as display configuration issues, graphics driver problems, corrupted system files, or changes after a Windows update. To better understand where the problem is occurring, could you please let me know what happens every time you turn on the device?
Are you able to see the manufacturer logo (for example, Dell, HP, Lenovo, ASUS, etc.) when the device starts? If you can see the logo but the screen goes black afterward, this may indicate that the issue happens during the Windows loading process. If you do not see any logo or startup information at all, it could point to a hardware, display, or firmware-related issue.