1, the bottom of the laptop high pad or increase the cooling base to keep the ventilation smooth;
2, upgrade the machine's antivirus software for the whole anti-virus:
3, will be used to turn off the startup items, the method is as follows: Press the Win R key combination to call the Run window, type msconfig, click OK. Win R key combination to call the Run window, type msconfig, click OK, select the "startup" selection card, cancel you do not need to load the program, and then OK, you can turn off the startup of this program.
4, if the above operation is not obvious, you can also first try to save important files to reinstall the machine's operating system to see if there is any improvement, if the reinstallation of the operating system is still not improved, we recommend that you try to contact your local Lenovo service station to carry out the dust cleaning.