This configuration card is in the online live broadcast class, suggesting that the CPU is not enough. Do not replace the motherboard and upgrade the CPU separately. Which is appropriate (webcast class, no games)? Memory is added to 8G hard disk and replaced by solid state. The rest is to speed up the webcast class, and Celeron CPU's netbook will do. The solution is as follows.

The memory of 1 is too small and the system takes up too much memory. Buy the same model of 4G memory to form 8G.

There may be something wrong with the hard disk, or there are too many plug-in viruses in the system, which causes the running program to get stuck. Switch to a solid-state system and redo the system.

Microsoft officially downloads and installs genuine win 10. Don't install antivirus or anything else. Just install an online course plug-in and software. Use Microsoft's own antivirus software and firewall.

4. Check the speed of the router or cat to see if the router problem affects the network speed. Ensure that the network speed is 200-500 megabytes. The actual download speed is about 12-20 megabytes, and whether the upload reaches more than 2 megabytes.