Why does my computer come on automatically every day?

Why does my computer come on automatically every day?

Having your computer turn on automatically every day can be quite puzzling. You might be left wondering why this is happening and if there’s a potential issue with your device. Fear not, as we delve into the potential reasons behind this occurrence and shed some light on possible solutions.

There are a few different explanations as to why your computer may be turning on by itself. Firstly, it could be a power setting that’s causing this behavior. Many PCs have a setting that allows them to automatically turn on at a specified time, which can be useful for tasks like downloading updates or running maintenance scans. This feature is often found in the BIOS or UEFI settings of your computer.

Another reason your computer may be switching on automatically is due to Wake-on-LAN (WoL) functionality. WoL allows your computer to be powered on remotely, usually through a network connection. If another device or software on your network is sending a ‘magic packet’ to your computer’s network card, it can trigger the start-up process.

One common scenario where Wake-on-LAN comes into play is with scheduled tasks or backups. If you have software that runs automated tasks during a specific time window, it might be sending a signal to your computer to wake up and perform those tasks. Adjusting the settings or disabling this feature altogether can prevent your computer from turning on automatically.

In some cases, a problematic hardware issue can also be the culprit. Faulty power buttons or switches can cause intermittent power ups, leading your computer to start unexpectedly. Carefully inspecting your hardware and ensuring everything is properly connected and functioning could resolve this issue.

Moreover, some computers may possess a feature called “Power On By Alarm.” This feature allows the computer to be awakened from a powered-down state when an alarm is triggered. Double-checking your computer’s BIOS or UEFI settings and disabling this feature if unnecessary might be a solution that quells the mystery of automatic start-ups.

Additionally, it’s worth exploring the possibility of malware or viruses on your system. Certain types of malicious software can be programmed to turn on your computer at specific times or when certain conditions are met. Running a thorough antivirus scan can help identify and remove any potential threats.


1. How do I check if Wake-on-LAN is enabled on my computer?

To check if Wake-on-LAN is enabled, you can open the BIOS or UEFI settings, navigate to the power settings section, and look for any options related to WoL.

2. Can a scheduled task cause my computer to turn on automatically?

Yes, scheduled tasks or automated backups can trigger your computer to turn on. Checking your software settings and disabling this feature if unnecessary can prevent automatic start-ups.

3. How can I disable automatic start-ups?

You can disable automatic start-ups by accessing the power settings in your computer’s BIOS or UEFI and adjusting the relevant options. Look for features like “Power On By Alarm” or “Wake-on-LAN” and disable them if not needed.

4. Is it possible for a faulty power button to cause automatic start-ups?

Yes, a malfunctioning power button or switch can result in intermittent power ups. Checking your hardware connections and ensuring everything is in working order should help you identify any issues.

5. Can malware or viruses cause automatic start-ups?

Certainly. Malicious software can be designed to turn on your computer at specific times or conditions. Conducting a comprehensive antivirus scan can help detect and remove any potential threats causing this behavior.

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