My HP laptop, first installed Windows 10, then install deepin, but can't see the deepin at startup guide, on the Internet to find don't have a way to solve a number of ways, finally found that the system can be set in the BIOS boot sequence can be solved, specific steps are as follows:
1. The first to enter the BIOS, select system configururation, then choose the boot options, as shown in figure

2. Select the boot options in the UEFI boot Order, then choose OS boot Manager

3. The OS boot Manager deepin set to start in the preferences, the next startup can default deepin started, Windows 10 can also choose to enter the system, the best of both worlds.