Set win8.1 as the default operating system under multiple systems

Nowadays, the major versions of the window system are kept on the same day. Some softwares cannot be perfectly compatible. For convenience, we can only install multiple operating systems on one computer to meet the daily needs. The inconvenience of multiple systems is that you must select the appropriate system when you boot, otherwise you will enter the default operating system. The following small series will introduce you how to set up win8.1 as the default operating system.
1. Right click on the computer and select Properties to enter the advanced settings of the system.

If you set win8.1 as the default operating system under multiple systems
2. Click the Settings button in Startup and Recovery.

3. In the drop-down bar of the default system, we can directly select win8.1 and save and exit.