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  ARM Give a man a fire and he's warm for a day, but set fire to him and he's warm for the rest of his life (Terry Pratchett, Jingo)

Latest Windows 11 updates may break the OS's most basic bits

(2025/12/04)


Microsoft has admitted that it might have broken Windows components including the Start menu and Explorer in the latest round of updates.

The [1]problem , which "primarily affects a limited number of enterprise or managed environments," occurs on PCs running Windows 11 24H2 or 25H2 with a monthly cumulative update released from July 2025. XAML-dependent modern apps such as the Start menu, Explorer, Windows Search, and the taskbar might abruptly crash or fail to load.

The cause, according to Microsoft, is a failure to register certain XAML packages in a timely manner after an update installation. The bad news is that there is no immediate fix, and the workaround involves fiddling with the Windows registry for virtualized environments or a PowerShell script to prevent Explorer launching before the required packages are provisioned.

[2]

Affected users might see a black screen or experience a crash on startup when Explorer loads. The Start menu might fail to open, and the taskbar might not appear on the desktop. Any app that depends on XAML could also crash or fail to start. Microsoft said: "We are working on a resolution and will update this article as more information becomes available."

[3]

[4]

The Copilot company also noted that the issues were "very unlikely to occur on personal devices used by individuals." But never say never, eh?

[5]Windows 11 needs an XP SP2 moment, says ex-Microsoft engineer

[6]Dell says Windows 11 transition is far slower than Win 10 shift as PC sales stall

[7]Microsoft's fix for slow File Explorer: load it before you need it

[8]Windows boss defends 'agentic OS' push as users plead for reliability

According to Microsoft, the "difficulties" might occur if Windows updates are installed before a first-time user logs on to a persistent OS installation, or before all users have logged on to a non-persistent OS installation (such as Virtual Desktop Infrastructure).

Although there is a workaround for admins to deploy when the support calls come in, breaking Windows to the point where fundamental parts of the user experience stop working is not a great look for Microsoft, particularly since it appears these problems go back to July 2025.

At this point, we'd usually say something about the company's "legendary approach to quality control," but, as always, The Register readers [9]had far better ideas .

[10]

Paul Herber's [11]"Well, it compiles!" seems to sum up things pretty well as affected administrators gaze glumly down the barrel of yet another problem with Windows updates. ®

Get our [12]Tech Resources



[1] https://support.microsoft.com/en-us/topic/kb5072911-explorer-the-start-menu-and-other-xaml-dependent-apps-might-not-start-or-close-unexpectedly-on-some-enterprise-devices-d2d30684-4e2b-47f5-9899-a00a8e0acb09

[2] https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_software/front&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=2&c=2aTG-J3TX7jwD_MtPnvbGugAAAIc&t=ct%3Dns%26unitnum%3D2%26raptor%3Dcondor%26pos%3Dtop%26test%3D0

[3] https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_software/front&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=4&c=44aTG-J3TX7jwD_MtPnvbGugAAAIc&t=ct%3Dns%26unitnum%3D4%26raptor%3Dfalcon%26pos%3Dmid%26test%3D0

[4] https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_software/front&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=3&c=33aTG-J3TX7jwD_MtPnvbGugAAAIc&t=ct%3Dns%26unitnum%3D3%26raptor%3Deagle%26pos%3Dmid%26test%3D0

[5] https://www.theregister.com/2025/12/01/windows_needs_another_xp_sp2/

[6] https://www.theregister.com/2025/11/26/dell_q3_2026/

[7] https://www.theregister.com/2025/11/25/microsoft_trying_preloading_to_solve/

[8] https://www.theregister.com/2025/11/17/windows_agentic_os_feedback/

[9] https://www.theregister.com/2025/11/08/microsoft_lacks_quality_control/

[10] https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_software/front&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=4&c=44aTG-J3TX7jwD_MtPnvbGugAAAIc&t=ct%3Dns%26unitnum%3D4%26raptor%3Dfalcon%26pos%3Dmid%26test%3D0

[11] https://forums.theregister.com/forum/all/2025/11/08/microsoft_lacks_quality_control/#c_5176862

[12] https://whitepapers.theregister.com/



WTF?

Joe W

The Copilot company also noted that the issues were "very unlikely to occur on personal devices used by individuals."

Yes. Great. Unfortunately it is business use I care about, i.e. managed systems. When I stopped gaming I stopped using Windows at home, I'm only stuck with it at work. Does that mean, business users are less important to MS? Maybe that is a story we should spin more?

Quality control? We have heard of it (and identified it as an expensive cost centre we then did eliminate).

Re: WTF?

wolfetone

It's becoming more apparent to me that Micro$oft are using Copilot to not only write this shit, but to QC test it too. I bet it's even writing the unit tests itself.

How much longer will this go on for? By rights, really, you should stop updates on your equipment given the real risk of it breaking the whole place apart. But if you do that you leave yourself open to attacks made possible by Micro$oft's lax attitude to security.

Happy Christmas eh.

Re: WTF?

Snake

Until the affected businesses united and complain, nothing will change. Hundreds of millions of individual Windows users might do a lot of whinging but very few, percentage-wise, bother to vent their frustrations directly to MS; getting even a few larger corporations together to gripe means thousands of equivalent user voices and, more importantly, lost face and potentially lost commercial income. The corporate Windows users have the power...but will they ever flex it??

Re: WTF?

Doctor Syntax

There used to be such things as user groups who could exert some leverage. I suppose user businesses decided it was taking up too much staff time to attend meetings, even before COVID. Then there was the issue of who would represent the business - quite unacceptable to send some low level techie who understood what it was about it it was qay too detailed for a managerial chap.

Re: WTF?

UCAP

Until the affected businesses united and complain ...

And when the businesses unite and complain, MS will do absolutely nothing about it. Remember, Microsoft knows what's good for you and will ran it down your throat until you choke!

Re: WTF?

Snake

That might be a bit pessimistic :p For example, IMHO if the financial industry banded together and said "your Windows 11 telemetry is unacceptable for our security operations!", I would think that MS would blink and create a version without the stuff. Losing hundreds of thousands of seats in a major industry would make them reconsider (well, if they had even a single gram of intelligence left in them). After all, MS created locked-down versions of both WinCE and Win7 for the financial industry, it seems the industry has some pulling power.

Doctor Syntax

"The bad news is that there is no immediate fix, and the workaround involves fiddling with the Windows registry for virtualized environments or a PowerShell script to prevent Explorer launching before the required packages are provisioned."

But it's so much easier than Linux, isn't it?

How does a user get in to fiddle with the registry or create and run a script without the task bar or panel? I don't suppose Ctrl Alt F1 woks on Windows.

LBJsPNS

Particularly how does a user in the type of locked down corporate environmemt where this seems to be happening get in to fiddle etc...?

BasicReality

IT will just send you a replacement laptop. Seems to be their fix for everything.

LBJsPNS

They're not even trying anymore.

seven of five

Au contraire, they are trying. Trying to keep users on Windows 10. With allies like them, who needs enemies?

Anonymous Custard

I'd say they're very trying, especially for the patience of those who have to pick up the pieces (again)...

MS strike again

Swordfish1

It completely, fu$kd, my computer up. After trying various ways to try to recover, I literally had to repartition, and re-install a backup, that Hasleo had automatically made 3 days ago.

All is working again - 5 hours again wasted faffing around.

Of course, all updates have been suspended for 5 weeks until MS sort the latest cockup out.

CS

Windows "Professional" "Enterprise"...

Jou (Mxyzptlk)

The most contradictory term of something that really exists and can be bought was "Microsoft Works".

Now it is "Windows Professional".

Re: Windows "Professional" "Enterprise"...

Bebu sa Ware

Now it is "Windows Professional".

For a particular meaning of "professional" as in you fuck with it but pretty quickly find yourself with little to show for the exercise, if you are lucky, other than just poorer. Seems pretty apt.

vibe coding

Valeyard

just like, chill guys, you're interfering with the vibes

Windows "Professional" "Enterprise"... "Cockup" ?

Bebu sa Ware

Looks like Microsoft is not only [1]"at home" to Mr Cockup . but it's liberty hall for all his near relations and acquaintances.

[1] https://m.youtube.com/watch?v=VXTWSClS5uw

BasicReality

You think after 30 years, 102 days, they'd be able to get the start menu to work right.

Modern apps

VoiceOfTruth

>> XAML-dependent modern apps such as the Start menu, Explorer, Windows Search

Why are these considered modern? The start button began a long time ago. What does it gain by being modernised with XAML?

MS should take a whole new/old look at Windows. Certain parts, including the Start button and Explorer, don't need to be modernised. They need to be reliable and nothing else. I think MS really started to lose its way after Windows 7. That was the last reasonable version. It was not as snappy as Win2k, but it was at least usable. The stuff that MS dumps out today is just bloated crap. But they'll keep adding more crap.

Re: win2k snappy ?

Gerhard den Hollander

This is the first time in a long, long time that I see someone post something positive about win2k

The general opinion was

W2k bad

Xp sp3 good

Vista awful

Win7 good

Win10 okish

Win11 makes win10 look good.

Nobody talks about the one in between, that introduced the modern ( i think that was the name for those, modern ) apps. And had the godawfull tiles and metro.

Let's take everything that socks about desktop OSes and combine it with everything that socks on mobile devices so we get one OS that's equally hated on all platforms.

When is enough "ENOUGH!!!"

may_i

This will doubtless cause pain for corporate clients. Maybe pain at that particular pressure point might be enough for people to say "ENOUGH!".

Yeah, I know, I'm being far too optimistic.

But seriously, if I was to roll out an update at work and it broke our system for thousands of customers, I'd be in very hot water.

Groo The Wanderer - A Canuck

They also leave you vulnerable to attacks even if you're fully up to date. See last windows 11 install I ran three weeks ago that lasted a whole two weeks before something nuked my partition tables on all my drives.

On reinstalling Linux, I discovered a miracle: Electronic Arts has released a Linux Proton compatible loader so now ALL my games run on Linux except one whose servers have been decommissioned. Even windows 11 can't claim that any more.

"Well, it compiles!"

Mike 137

The worst is that this quote doesn't complete the concept -- the second half is "let's get it out the door before it breaks".

All science is either physics or stamp collecting.
-- Ernest Rutherford