Cumulative Updates - February 27, 2020 - KB4535996 Optional

The article did not say anything on POST.

POST is just an issue some people are reporting on this post for this Update.

The article said it is occurring on all of the HP computers with ‘Sure Start Secure Boot Key Protection’ on, but not on Lenovo computers.

"BIOS performs the power on self test (POST) at the very early stages of your computer startup"

If an Update corrupted the BIOS, then it could fail here.

Whether it's the BIOS (Basic Input/Output System) to get the system started, Firmware that makes Hardware work, or OS & Apps, it's all Software. And, they have to work together.

Often, when the system is not working correctly, it may need the BIOS updated with the latest BIOS Software.

Windows 10 KB4532693 & KB4524244 causing new issues

https://www.windowslatest.com/2020/02/13/windows-10-kb4532693-and-kb4524244-issues

KB4524244

"The update has triggered boot failures on HP computers for a number of users. These issues seem to be connected with ‘Sure Start Secure Boot Key Protection’.

Secure boot has nothing to do with POST. A machine must post before it can try to boot.

Categorically a Windows Update did not cause your PC to fail POST. POST only tests various hardware components, and as you have a new PC you should be able to send it back for replacements.

You'll really have to work out what has failed (in my experience RAM doesn't fail, CPUs don't really fail, boards fail a ton, especially when mishandled and or incorrectly installed)

I'm a tech and if this issue came to me, I'd never in a million years blame the update, unless it was a BIOS flash gone wrong. OSes just aren't low level enough to brick out hardware like this. Gl with troubleshooting. If you hit a brick wall I'll be happy to talk you through next steps, but really just send stuff back until it works.

Edit: Your comment got featured on Techradar, which is where you're getting frustrated comments from (just saw your exchange with someone else) we're just annoyed that a conclusion was drawn from your comment and the "journalist" needed to know more about computers, not you.

I posted this earlier & reposting it here:

Windows 10 KB4532693 & KB4524244 causing new issues

https://www.windowslatest.com/2020/02/13/windows-10-kb4532693-and-kb4524244-issues

KB4524244

"The update has triggered boot failures on HP computers for a number of users. These issues seem to be connected with ‘Sure Start Secure Boot Key Protection’, as one user explains:

“In our environment, this is happening on all HP AMD based machines with Sure Start Secure Boot Key Protection enabled. If we turn that off before the initial attempt to install the KB then the KB will install."

"We are also having this issue on all of our HP EliteBook 745 G5’s with AMD Ryzen APU.Sure Start is enabled on all of them. We can confirm that Lenovo based AMD Ryzen laptops are not having the same issue with KB4524244 with Secure Boot enabled."

"We have sent the issue to Microsoft Platforms DSE and they are looking at the issue internally"

I have a Lenovo and have not had these issues (so far).

But, I do have an HP Printer. Sending Print Jobs to it fails immediately after the Spooler.

In Event Viewer, it gives the error “**The machine-default permission settings do not grant Local Activation permission**….”

With HP computers having issues with “**Sure Start Secure Boot Key Protection**” & my HP Printer having Permission issues, it appears Microsoft’s Update has corrupted Security/Access on HP devices.

Not sure if the part of the Update that is corrupting HP devices is also causing the other issues people are reporting or if it is a different issue in the Update.

Thanks for the information JeffSchafer but I have already done all of that so at this point I am grasping at straws.