1. Internet access is slow or unable, and the speed of opening or closing a webpage is slow. This kind of fault is caused by hardware, network card, slow network speed and virus. Generally, it is because the program software or plug-ins in your computer are incompatible with the system. ...

2. First, check whether the system is equipped with multiple firewalls, set up a proxy server and run online antivirus software. If there is, turn it off.

3. I suggest you use 360 security guards. Always disinfect your computer and scan it thoroughly.

Don't load too many programs when you start the machine.

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