1, there is not enough space on drive C. Delete unnecessary files. Specifically, you can search for software about system slimming.

2. When installing the software, you can change the default installation path and not install all the software to the C drive.

3. Go back to the computer desktop, select the bottom left corner to start, then clean up programs, accessories, system tools and disks, please select drive C, then select the bottom left corner to start, then defragment programs, accessories, system tools and disks, and select drive C. ..

If all the above methods have been tried, if the speed is still slow, then you need to do a thorough antivirus on your computer.