Each computer is a complex device, so we should try not to give strict recommendations, as there are several factors to take into account when we speak about the right shut-down frequency:

Age. According to a study, new computers should be turned off regularly and the older ones should be kept running to increase their lifespan.
Concern for its longevity. If you wish to increase your computer’s lifespan as much as you can, then shut it down once a day.
Antivirus software. If you do not use antivirus software or your device is not connected to a secure network, you should definitely power it off regularly to disconnect if from the internet and avoid potential cyberattacks.
Automated tasks. Leave your computer turned on if there are some automated tasks that need to be done, like updates, backups, or virus scans. Otherwise, these tasks cannot take place.

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