Computer: Dell inspiron5559, system: win 10.
1. Click on the lower left corner to find the settings icon.
2. Open the settings and enter the settings page.
3. Enter "Privacy".
4. Turn off the SmartScreen filter as a whole.
5. Open the folder of recently downloaded programs.
6. After opening the folder, try to double-click the downloaded program and run it. At this point, the system will prompt "This program may cause security risks to the computer" and click "More Information".
7. If the open program is shown as "Unknown Publisher" as shown in the figure below, there are two possibilities. One is that the publisher is not filled in for the application at all, and the other is that the system cannot read the publisher information due to the network speed.
8. It can be solved by downloading again from another download source.
Guiding process
When we press the power switch, the power supply starts to supply power to the motherboard and other equipment. At this time, the voltage is unstable. The control chipset on the motherboard will send and maintain a reset signal to the CPU, so that the CPU will automatically return to the initial state, but at this time, the CPU will not immediately execute instructions.
When the chipset detects that the power supply has started to supply power stably (of course, the process from unstable to stable is only an instant), the reset signal is removed (if the reset button on the computer panel is manually pressed to restart the machine, releasing the button will remove the reset signal), and the CPU will immediately start executing instructions from the address FFFF0H.
As can be seen from the previous introduction, this address is actually within the address range of the system BIOS. Whether it's AwardBIOS or AMIBIOS, all you put here is a jump instruction to jump to the real startup code in the system BIOS.