At times, when you boot your Windows 10/8/7 system, you may reach up to the Welcome screen, but then it stays blank. While there are a lot of fixes being posted, the one I am posting now is the one that worked for me and a few people I helped.
Windows 10 boots to Blank or Black Screen
1] The first step I recommend is to run the Startup Repair because it’s used to fix boot issues. It would check the consistency of files required to boot like Boot Manager, etc.
Click on “Command Prompt” and run SFC /SCANNOW.