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Windows Update is failing

HP Recommended
Pavilion xa0024
Microsoft Windows 10 (64-bit)

Windows Update KB4549951 to Windows 10 v. 1909 is failing. HP software detects a problem during the update when the system reboots.  It then automatically runs the operating system repair utility and then backs out the updates.  It seems to finish rebooting fine after this, but then Microsoft Windows again tells me that it needs to apply this update.  I have tried to apply this update on two separate days with the same result.  Has anyone had this problem and found a solution?  Thank you. 

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HP Recommended

First:- Turn off the computer, press and hold the PWR button for 4 seconds.

Then - Leave only keyboard and mouse connected, disconnect all externally connected
devices such as Docking Station, USB storage devices, displays, and printers.
Unplug the AC adapter from the computer.

Next - Press and Hold the Power button for 15 seconds to Hard Reset.
Rinse and Repeat; Re-Connect the AC adapter.

NOW begin checking/testing/proving the Hardware is fit for purpose.
Power on your PC, press ESC (repeatedly), then F2 at the prompt.
Choose System Tests (Fast Test does a 4 minute hardware check).

HP PC Hardware Diagnostics Windows is a Windows-based utility that allows you to run diagnostic tests to determine if the computer hardware is functioning properly. The tool runs within the Windows operating system in order to diagnose hardware failures. HP PC Hardware Diagnostics Windows comes pre-installed on new HP computers, but if not on yours, download here:-



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Thank you very much for your suggestion.  I followed your instructions exactly and here is what happened.


After powering down, disconnecting devices and following your instructions, I then went into the diagnostics mode and ran the Fast Test.  Everything passed, no problems noted.  I then exited diagnostics and the computer proceeded to boot up.


During this restart, it then informed me that it was:

-  Preparing Auto Repair

-  Diagnosing my PC

-  Attempting repairs

-  It said then that it could not repair the problem.  Did I want to shut down?


I told it to shut down, which it did.  I then restarted it and it booted fine and has run fine since...


Until this morning.  Windows again wanted me to apply its update.  I chose "Update and restart."  The same problem occurred.  It ran the update to about 30% complete and then initiated a reboot.  Upon rebooting, the HP software said:

-  Diagnosing you PC

-  Attempting Repairs

-  Could not fix the problem.  Undoing the updates


After a couple of minutes undoing the updates, the system booted up and is now running fine.  But surely Windows is going to again want for me to apply its update and the same problem will recur.


Do you have any other thoughts?  Again, thank you.

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