Solved Windows 11 update Install error - 0xc1900101

FredricJLowe · Dec 20, 2025

6 hrs 15 min. running System Extensive test

FredricJLowe · Dec 20, 2025

9 hrs 11 min. and still at 1%

FredricJLowe · Dec 20, 2025

It's been a long day and at 10 hrs 30 min. it is still stuck at 1% with the hard drive light solid white.

Last night after I stopped the System Extensive Test after around 3 hours stuck at 1%, I ran the System Fast Test which completed successfully and passed all the following components:

Processor: PASSED
Hard Drive/SSD SMART Check: PASSED
Hard Drive Short DST: PASSED
Memory: PASSED
System Board: PASSED
All other components: PASSED

The SSD shows 79% remaining life with 21% wear.

Is there anything else I should do for now before trying to contact HP on Monday about a newer BIOS version than the one I have from 2018?

Thank you for all of your help to date.

zbook · Dec 20, 2025

These steps are suggested:

1) Download and install:

HP PC Hardware Diagnostics Windows v2.9.0.0

https://ftp.hp.com/pub/softpaq/sp165501-166000/sp165686.exe

2) Ensure sleep mode is disabled in the system's Power Options while performing this test.

Select system tests > system extensive test > run overnight while sleeping > take pictures > post images or share links

3) View post #52 for the event viewer reports on secure boot > view the multiple active EF threads to update secure boot

How to check if your Secure Boot certs are updated. (three methods)

Method One Download cjee21's files, attached to the bottom of this post. 1. Save the file to your desktop. 2. Extract the contents to your desktop. 3. Open: Check-UEFISecureBootVariables-main 4. Right click: Check UEFI PK, KEK, DB and DBX.cmd ...and choose: Run as administrator. Your...

www.elevenforum.com

Secure boot update HowTo

i have put this together as i had problems updating 2 desktops and 3 laptops. which have now all had their Secure Boot Certs updated to the new 2023 secure boot cert also the other post about this were getting very long and confusing. this is in two parts. part A and part B. edit by me. please...

www.elevenforum.com

4) When contacting HP for possible BIOS upgrade(s) also report problems with HP UEFI Hardware diagnostics (timer and indefinite run)

FredricJLowe · Dec 20, 2025

Thank you again for all your help! I checked and Secure Boot is already enabled on my system. Between the System Fast Test passing all components and my original issues being resolved (Memory Integrity now working, Windows fully updated), I'm confident moving forward. I really appreciate the time you took to help me troubleshoot. Happy holidays!

zbook · Dec 20, 2025

Please post a new V2 share link into the newest post for a check.

FredricJLowe · Dec 20, 2025

I appreciate the suggestion, but I've already invested significant time in diagnostics. The System Fast Test confirmed all hardware is healthy, and my original issues (Memory Integrity and Windows Update finally getting 25H2 are resolved.
If you recall, my initial reason for submitting a thread was the last security update that kept rolling back from the 23H2 that was installed.
With all due respect and gratitude, I'm going to proceed with backing up my system and close this out.
If I run into future issues on this dinosaur HP ENVY, I I'll be back.

Thanks again for all your help!

zbook · Dec 20, 2025

You're welcome.

Happy holidays.

This is an extra step in case there are unexpected future problems:

Enable Automatic Backup of System Registry when Restart in Windows 11

This tutorial will show you how to enable automatic backup of the system registry to the RegBack folder when the computer restarts in Windows 10 and Windows 11. Starting with Windows 10, version 1803, Windows no longer automatically backs up the system registry to the RegBack folder when the...

www.elevenforum.com

This is a post from another thread displaying a HP UEFI Hardware diagnostic test result for comparison purposes:

https://www.tenforums.com/attachments/drivers-hardware/428330d1757369336-hp-omen-gaming-laptop-issue-test-results-dos-diagnostics.jpg

Solved Windows 11 update Install error - 0xc1900101

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