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SubjectI have finally managed to get Windows 10 version 20H2 to work on my refurbished HP Elitebook 840 G1 laptop on 23 Jan 2021 Sat
Subject: I have finally managed to get Windows 10 version 20H2 to work 
on my refurbished HP Elitebook 840 G1 laptop on 23 Jan 2021 Sat

Good day from Singapore,

On 30 Dec 2020 Wed, I bought a refurbished/used/second hand HP Elitebook
840 G1 laptop for SGD$250 in Singapore.

Blog Post: I have just bought a refurbished HP EliteBook 840 G1 laptop
for SGD$250 on 30 Dec 2020 Wed
Link 1:
http://tdtemcerts.blogspot.com/2021/01/i-have-just-bought-refurbished-hp.html
Link 2:
https://tdtemcerts.wordpress.com/2021/01/01/i-have-just-bought-a-refurbished-hp-elitebook-840-g1-laptop-for-sgd250-on-30-dec-2020-wed/

After the purchase and upon reaching home, I formatted my laptop and
freshly installed Windows 10 version 20H2 and version 1809 respectively.
However, within a few minutes I would get the following message:

"System Settings Change

Your hardware settings have changed. Please reboot your computer for
these changes to take effect."

After getting the above message, Windows 10 will then freeze/lock up
immediately. I have no choice but to reboot. Every time I reboot, I
would get Blue Screen of Death (BSOD) with the Inaccessible Boot Device
error.

Blog Post: HELP! My refurbished HP Elitebook 840 G1 laptop cannot run
Windows 10. Inaccessible Boot Device error.
Link 1:
http://tdtemcerts.blogspot.com/2021/01/help-my-refurbished-hp-elitebook-840-g1.html
Linl 2:
https://tdtemcerts.wordpress.com/2021/01/08/help-my-refurbished-hp-elitebook-840-g1-laptop-cannot-run-windows-10-inaccessible-boot-device-error-2/

At that point in time, I temporarily deferred troubleshooting and
installed Fedora Workstation 33 Linux on my refurbished HP Elitebook 840
G1 laptop instead.

Blog Post: I have installed Fedora Workstation 33 Linux on my
refurbished HP Elitebook 840 G1 laptop because it cannot run Windows 10
at all
Link 1:
http://tdtemcerts.blogspot.com/2021/01/i-have-installed-fedora-workstation-33_8.html
Link 2:
https://tdtemcerts.wordpress.com/2021/01/08/i-have-installed-fedora-workstation-33-linux-on-my-refurbished-hp-elitebook-840-g1-laptop-because-it-cannot-run-windows-10-at-all/

Today, 23 Jan 2021 Sat, I have come back to revisit the problem after a
hiatus. After receiving inputs on the Microsoft forums some time ago, I
decided to upgrade the BIOS/firmware of my refurbished HP Elitebook 840
G1 laptop. The existing BIOS version is 01.20 (release 28 July 2014). I
am going to upgrade the BIOS to the latest version 01.49 (release 24 Feb
2020).

Unfortunately, HP support and downloads website only offer BIOS
downloads in Windows .exe executable format. I am seriously
inconvenienced by this because I had already installed Fedora
Workstation 33 Linux on my refurbished HP Elitebook 840 G1 laptop. There
is no way I can run a Windows .exe executable on a Linux operating
system. To circumvent this problem, I have downloaded Hiren's Boot CD
v1.0.1 ISO file and installed WoeUSB on Fedora Workstation 33 Linux.
Using WoeUSB, I have "burned" Hiren's Boot CD ISO to a USB thumb drive.
Then I used this USB thumb drive to boot up Hiren's Boot CD on my
refurbished laptop. Hiren's Boot CD is a Live Windows 10 Bootable
CD/DVD/USB operating system. Using Hiren's Boot CD, I downloaded the
latest BIOS from HP website and proceeded to flash my firmware with BIOS
version 01.49 (release 24 Feb 2020). With much optimism, I went ahead to
format my laptop and freshly install Windows 10 version 20H2 again. To
my dismay, updating the BIOS/firmware from version 01.20 (release 28
July 2014) to version 01.49 (release 24 Feb 2020) DID NOT solve the
problem. I am still getting Windows freezing/locking up and Inaccessible
Boot Device BSOD error on every reboot.

I did not give up. By a stroke of good luck, I allowed Windows to do
startup repair. When Windows 10 could not start, it automatically
uninstalled the update causing the problem as part of its startup repair
process. The offending update was uninstalled and I could login to
Windows successfully. This is the message I got after logging into
Windows:

Message: Startup Failure: “We removed some recently installed updates…”
Link:
https://support.microsoft.com/en-us/windows/startup-failure-we-removed-some-recently-installed-updates-4c2f7448-3483-8649-843c-1e80ed9f4a00

I was given the above message but I still do not know which device
driver or update had caused my Windows 10 to freeze and subsequently
produce Inaccessible Boot Device BSOD error on every reboot. I may take
a look at Windows Event Viewer/logs when I am free in the future because
it is already 11.17 PM now at night in Singapore.

Of course, I am very happy to have managed to get Windows 10 version
20H2 to work on my refurbished HP Elitebook 840 G1 laptop. I know
Windows 10 will attempt to install the offending update again after 30
days, so I am getting myself prepared by creating system restore points
after installing drivers and software.

The following is the CORRECT order of system restore points created:

[1] Windows Update 23/1/2021 6:01:15 pm (GMT+8)

[2] After installing Intel VGA, Chrome, AVG and Zonealarm 24/1/2021
12:04:01 pm (GMT-8)

[3] After installing Intel Chipset Driver 24/1/2021 12:20:07 pm (GMT-8)

[4] After installing Intel ME Driver 23/1/2021 8:34:37 pm (GMT+8)

[5] After installing AMD Display Driver 23/1/2021 10:12:33 pm (GMT+8)

[6] Everything working on 23 Jan 2021 23/1/2021 10:51:04 pm (GMT+8)

Please note that the dates and timings in the above list are not in the
correct sequence because of wrong timezones being used in restore point
#2 and #3. The correct time zone in Singapore should be GMT+8.

With the above system restore points being created, I am hoping that, if
the offending update is going to be installed 30 days later, causing
Windows to freeze and produce Inaccessible Boot Device BSOD error again,
I can easily rollback my system to a working restore point without too
much of a hassle.

Thank you.







--
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The Gospel for all Targeted Individuals (TIs):

[The New York Times] Microwave Weapons Are Prime Suspect in Ills of
U.S. Embassy Workers

Link:
https://www.nytimes.com/2018/09/01/science/sonic-attack-cuba-microwave.html

********************************************************************************************

Singaporean Targeted Individual Mr. Turritopsis Dohrnii Teo En Ming's
Academic
Qualifications as at 14 Feb 2019 and refugee seeking attempts at the
United Nations Refugee Agency Bangkok (21 Mar 2017), in Taiwan (5 Aug
2019) and Australia (25 Dec 2019 to 9 Jan 2020):

[1] https://tdtemcerts.wordpress.com/

[2] https://tdtemcerts.blogspot.sg/

[3] https://www.scribd.com/user/270125049/Teo-En-Ming

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