Constantly refreshing loading screen is preventing me from reaching the login page

[CIKiller]

A while ago, I was plagued by the common "Plugged in, not charging" error. In my attempt to fix it, I uninstalled my battery drivers, the shut down the Probook.

Unfortunately, once I powered the laptop back on, the laptop screen initially displayed the date and time, before constantly refreshing the loading cycle.

Now, regardless of what I do, the computer screen displays the loading circle that consists of several dots, but cuts to black and begins the loading cycle over again in the span of 1-2 seconds.

I am able to change the brightness, but that is about it. I am unable to access anything within my computer in any way, and the computer in question lacks a removable battery.

I have attempted to shut down the computer, but it does not appear to completely do so, and so it is trapped in this endless cycle.

Edit: Upon plugging the computer in, the loading process is restarted faster than normally, and the date and the login screen is occasionally visible for a few milliseconds at a time.

If anyone has any idea what to do, it would be greatly appreciated.

[Lil_Boy_Blue]

Hi

It is possible the BIOS is the problem.  Ensure the Time/Date and boot sequence is correct.

HP ProBook 450 G5 Notebook PC - Maintenance and Service Guide

11.21MB

Maybe the manual will give some clues? Check the CMOS/RTC battery also.

Not relevant?

Battery Safe mode

Before removing internal components, you must place the computer in “Battery Safe mode.” This mode avoids short-circuits or system malfunction by removing power from internal components.To place the computer in “Battery Safe mode,” follow these steps:1.With the computer turned off and AC adapter connected, press the following key and button combination: Windows key + Backspace key + Power button.2.Turn the computer on to initiate “Battery Safe mode.”3.After the computer powers off, disconnect the AC adapter.In “Battery Safe mode,” the power button will not turn the computer on if the AC adapter is not connected.To disengage “Battery Safe mode,” plug in the AC adapter and press the power button.

Press the POWER for 5 seconds to try and force a ShutDown.