If you are just getting a blank/black screen after starting Windows, please follow the below steps and try to solve the problem.

 1. Press Alt+Ctrl+ Delete on your keyboard (all together, at a time) => click Start Task Manager.
- Under the Processes/Details tab, look for a process named runonce.exe or wscript.exe.
- Right click runonce.exe or/and wscript.exe => click End Process Tree => End Process Tree.

After terminating/killing runonce.exe or/and wscript.exe, your should be able to see the Desktop. 

2. Open Quick Heal software => click Tools => click Launch AntiMalware.

- Click Scan Now.

- Click Clean.

- After clicking Clean, if Anti-malware prompts to restart the system, please restart the system and check the status of the problem.