Why Does My Computer Keep Resetting the Date and Time?

Learn why your computer resets date and time and how to fix it easily by replacing the CMOS battery.

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If your computer keeps resetting the date and time, the most likely cause is a failing CMOS battery. This small battery on your motherboard powers the BIOS settings, including the clock, when your computer is turned off. Replacing the CMOS battery is a simple and inexpensive fix that should resolve the issue. You can usually access the battery by opening your computer case and locating it on the motherboard. Ensure you purchase the correct battery type, commonly a CR2032 coin-cell.

FAQs & Answers

  1. What happens if the CMOS battery fails? If the CMOS battery fails, your computer will reset the BIOS settings, including the date and time, every time it's powered off.
  2. How do I know if my CMOS battery is failing? Signs of a failing CMOS battery include incorrect date and time settings, error messages during startup, and BIOS settings resetting.
  3. Can I replace the CMOS battery myself? Yes, replacing the CMOS battery is a straightforward process that can be done by opening the computer case and locating the battery on the motherboard.
  4. What type of CMOS battery should I buy? Most motherboards use a CR2032 coin-cell battery, but it's best to check your motherboard manual to confirm the correct type.

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