1, press WIN+X, and then select "System";

2. After typing the system information interface, click "Advanced System Settings";

3. Then click the "Settings" button in the "Startup and Recovery" area;

4. When the system starts, select windows 10 as the default system, then uncheck "Set the display time to the time you need to wait" and confirm.

Extended data:

In addition, you can also directly delete the previous old system.

The steps are as follows:

1. Modify the system configuration, edit the boot file, leave the boot item you want to refer to www.w 10zj.com, press win+r to open the operation, enter msconfig and click OK to open the system configuration;

2. Enter the system configuration, click the Boot tab, select the previous system under the Boot tab of the system configuration interface, click Delete, and click OK to save, as shown:

Generally, the ghost version of win 10 operating system will be installed in the cover installation, and the previous system will not be retained. However, if you use the original installation, there may be a problem that you need to select an operating system to start.