The problem of your HP computer automatically turning on after plugging in the power may be caused by the setting of the auto start function of incoming calls in the motherboard BIOS.Different models of mainboards have different settings. The following are some common options: enter Power Management Setup → Power Again. This option determines the state of the system when power supply is restored after an unexpected power failure.You can select Power Off, Power On, or Last State.If you select Last State, the system will automatically restore to the state before the power failure.If the power is turned off before the power is cut off, the power will not start automatically after the call.In addition, in the BIOS of some new motherboards, the PWRON After PW-FALL option can also be selected to set the status of the motherboard power soft switch after the system is powered off abnormally.If ON is selected, the system will start automatically when it is powered on after abnormal power failure.If it is confirmed that the BIOS has turned off the scheduled power on and automatic power on functions, but the problem of self power on still occurs, it may be caused by hardware failure.It is recommended that you unplug the external equipment, battery and power adapter and let the machine stand for half an hour before trying to start again. If it still fails to start normally, please contact the local gold medal service center for detection.If you need to reinstall the system, you can use a USB flash disk or hard disk to install it.In addition, if this happens, it may be a short circuit on the motherboard or a problem with the power function key.It is recommended that you replace the motherboard or check the power adapter and connecting cable for problems.If you need more detailed solutions, please refer to the technical support documents provided on the official HP website or contact customer service personnel for help.
The drive is not installed properly. Install the original drive "Battery calibration process: 1. Set the screen saver to" None "2. Set the power usage scheme to" Always On "in Windows Power Management, and set all the following menus related to turning off devices to" Never "3. Set the" Low Battery Alarm "to 10% in the alarm tab, and set the operation to" Do nothing "; set the" Severe Battery Shortage Alarm "Set to 3%, and the operation is "Standby" 4. Turn the screen brightness to the maximum 5. Confirm that all windows are closed and all previous working data are saved 6. After confirming that the battery charge is above 80%, unplug the power supply and all external devices. At this time, if the screen brightness automatically decreases, turn it to the maximum 7. After the discharge, the notebook will automatically shut down,After that, plug in the power supply to let the notebook charge. Be sure to wait until it is fully charged before starting up, and then restore the power scheme to the settings before calibration.The purpose of this is to make the battery discharge continuously at a low current, which is impossible to achieve in our daily use, because in normal state, we can't avoid various operations that will make the current fluctuate up and down.When to calibrate: As long as the battery status is displayed inaccurately or the battery pack is not used for more than a month or more, the main battery pack or multi-functional slot battery pack in use should be calibrated.It is unnecessary to calibrate the battery pack more frequently than once a month (even if it is used frequently).Calibration is not necessary before using the new battery pack for the first time."
It is OK to use only the power cord instead of the battery for the laptop. As you said, it may be a voltage problem if the laptop cannot be started, but it should not be a laptop problem.
