Thank you for the question!
The HelpDesk works only within this website https://helpdesk.zone. Unfortunately, at the moment our advices are not available by phone.
We need to know other additional information to help you:
1. Full model name of your Laptop;
2. What had been done before the problem happened;
3. Explicit description of the error during installation Windows 10;
Please try to describe the problem more explicitly. It would be better to see some screenshots or photos.
Thank you for your request.
You can also call to Microsoft Help Desk to decide the problem as soon as possible by phone: 1-800-Microsoft (642-7676)