There are many reasons for the blue screen, including hardware, software and other imperceptible factors, and there are many solutions. Let's analyze what happened to you. The blue screen usually appears when the system is started and shut down for the following reasons:

1, the remaining space on the hard disk is too small or there are too many fragments: it is necessary to ensure that a certain amount of disk space is reserved, and the fragments should be sorted by computer every once in a while;

2. System hardware conflict: The "blue screen" caused by this phenomenon is also common. What is often encountered in practice is the setting conflict of sound card or video card. Check whether there are any devices with yellow question marks or exclamation marks in the control panel → System → Device Management. If so, please try to delete it first, and then restart the computer. If not, you can manually adjust or upgrade the corresponding driver;

3. Load too many programs at startup: Don't load too many applications at startup to avoid running out of system resources;

4. There are bugs in the application: some errors or unstable factors in using the program will also cause blue screens;

5. Attacked by unknown programs or viruses: you can check carefully and take preventive measures;

6. Version conflict: Some applications need to call a specific version of the dynamic link library DLL. If the old version of DLL overwrites the new version when installing the software, or the useful DLL file is deleted by mistake when deleting the application, the above call may fail, resulting in a "blue screen". Try reinstalling.

7. Error or corruption in the registry: In many cases, this is the main reason for the "blue screen". The registry stores important data, such as system hardware configuration, application settings and user information. If the registry is wrong or damaged, a "blue screen" may appear.

8. Incompatibility between software and hardware: New technologies and hardware are developing rapidly. If new hardware is installed, "blue screen" often appears, which is mostly related to the old BIOS or driver of the motherboard, so that it can not support the hardware well. If your motherboard supports BIOS upgrade, you should upgrade to the latest version or install the latest device driver as soon as possible.