
Press Ctrl + Alt + Delete and then select Task Manager. In this case, you use a screwdriver or something like that to open your laptop correctly, then use a vacuum cleaner or a can of compressed air to blow the dust off the vents. Method 2. Still, if your laptop collects a lot of dust, it will affect the computer's ability to cool itself, which may affect system performance and running speed. Tiny dust has a small impact on computer performance. Your Lenovo laptop running slow Windows 10 may result from heavy dust in fan and heat sink. If these brief fixes don't work, try the following advanced workarounds one by one to solve the Lenovo laptop running slow problem beautifully. If you are on the Internet when your Lenovo laptop is slow, make sure all browser plugins are up-to-date.

Run antivirus software, upgrade RAM, upgrade HDD to SSD, disable Windows 10 automatic update. You can disable some programs in Startup so they don't run when your PC starts and speed up. To speed up your Lenovo laptop, you can clean your computer for more space and increase C drive. In Task Manager, select the "Performance".

Your Lenovo laptop running slow on Windows 10 may result from heavy dust in fan and heat sink.
