It will not cause direct harm, but it is recommended to shut down the machine if it is not used for more than one day.

If you are just browsing the web, watching the video, it is fine to not turn off the computer. But if you let the computer run power-hungry programs for a long time - such as high-load games - your computer's motherboard and hard drive will be worn out, and the computer's lifespan will be greatly reduced in the long run.

In addition, when the computer is not shut down for a long time, various software will be busy in the background, and the cache will accumulate, which is likely to cause minor problems, such as software freezes, slow response, and even sudden crashes and exits.

Moreover, the electronic components in the computer are sensitive to temperature. If the computer generates a lot of heat for a long time, the wear and tear of these components is inevitable.

Therefore, remember to give your computer a break from time to time, let it rest, so that it can continue to serve you for a long time, and its efficiency and performance can be maintained at the best level.