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Author Topic: Windows 11 - occasional hang at boot  (Read 6233 times)

HPsauce

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Windows 11 - occasional hang at boot
« on: August 25, 2023, 06:34:42 PM »

This is a weird one, so I'm just looking for opinions on where to start narrowing it down.
I recently was given a couple of old HP Z600 workstations, pretty capable beasts despite their age and limitations. Supplied originally with Windows 7 Pro.

Both have been updated (by me) to SSDs and dual CPUs, one now with faster Xeon X5675 (3.06GHz) chips. Old Nvidia GeForce GT730 video cards in both.
They only have TPM1.2 and are not upgradeable to TPM2.0 but both are running Windows 11 Pro generally well.
The slower one (2*X5660 @ 2.8GHz) is currently little-used but has exhibited no issues whatsoever.

The faster one is used daily and so far has had one "blue screen", a System Thread Exception in nvlddmkm.sys which is part of the Nvidia driver. I'm not too fussed about that as I'll probably upgrade the video card soon and I've only seen it once.

The weird problem is that sometimes it doesn't boot, but just hangs. Maybe 1 in 10, 1 in 20 or less, I've only just started logging occurrences.
Specifically it goes through all the BIOS stuff, goes to boot from the "Hard disk" (SSD) and the four blue squares of the Windows logo appear and that's it - it will stay like that for hours if left. Nothing seems to interrupt it other than pressing the power button. Wait a few seconds, power back on, it's fine.
Normally, once that logo appears, it's about 2 seconds before the "whirling dots" appear below it and off we go and the desktop soon appears.

Searching online doesn't bring up much useful other that suggesting what I do (power cycle) or restarting via safe mode, but there's a common implication that it's possibly video card related. This system does have 3 monitors connected which may or may not be relevant, the "slower" unit only has one.

The only change I've made recently is to increase the POST delay from 5 seconds to 10 and the frequency of hangs "seems" to have reduced, but realistically it's not been long enough to be at all certain.

Any thoughts anyone? e.g. power supply, video card, something else?
« Last Edit: August 25, 2023, 06:39:14 PM by HPsauce »
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meritez

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Re: Windows 11 - occasional hang at boot
« Reply #1 on: August 26, 2023, 12:01:46 PM »

Ooh look they can run Ubuntu:
https://www.youtube.com/watch?v=EyOmN1q-ABI

Which bios versions are your Z600 running?
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banger

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Re: Windows 11 - occasional hang at boot
« Reply #2 on: August 26, 2023, 06:29:43 PM »

Whirling dots? Are you running the latest version of 11 as that has a whirling circle on 22h2 at boot.
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Tim
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HPsauce

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Re: Windows 11 - occasional hang at boot
« Reply #3 on: August 26, 2023, 07:59:45 PM »

BIOS is 3.61 which I believe is the latest/final version.
OS Build 22000.2360 just the standard version with latest updates, latest being August 22, 2023—KB5029332 (OS Build 22000.2360) Preview.
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gt94sss2

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Re: Windows 11 - occasional hang at boot
« Reply #4 on: August 26, 2023, 09:10:55 PM »

Have you tried uninstalling KB5029332?

It appears to be causing issues on some systems - though not necessarily the one you describe.

Windows Update may also offer some additional "optional"updates which are not offered by default.
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HPsauce

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Re: Windows 11 - occasional hang at boot
« Reply #5 on: August 26, 2023, 09:28:06 PM »

Actually, now I look at timings of when I installed updates, since I installed KB5029332 the incidence of "hangs" seems to have reduced significantly.
The previous major update was August 8, 2023—KB5029253 (OS Build 22000.2295).

I've just realised I'm on Version 21H2, not 22H2, would that be because I'm on old hardware and it's not offering that update?
Edit: Indeed it almost certainly will be, I'll get that sorted probably next month as I've just spotted that security updates will stop in October for 21H2.
« Last Edit: August 26, 2023, 09:47:43 PM by HPsauce »
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HPsauce

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Re: Windows 11 - occasional hang at boot
« Reply #6 on: August 27, 2023, 10:04:30 PM »

Windows Update may also offer some additional "optional" updates which are not offered by default.
Good point. I check that regularly and there are none.  :cool:
Oddly the main Z600 has behaved fine for the last 4 days, though it has been used sparsely over the weekend.

Today I've updated a couple of minor systems from 21H2 to 22H2 without any drama and not noticed anything radically different.
I'll use them for a while to gain confidence before attempting the same on my Z600s though.
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HPsauce

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Re: Windows 11 - occasional hang at boot
« Reply #7 on: September 12, 2023, 10:47:43 AM »

I only had one further hang and now everything is on 22H2 and working fine, so consider this closed.  :cool:

Oh and many thanks to @banger for spotting that I was on 21H2, the 22H2 update not applying was something I'd just overlooked.  :-[
« Last Edit: September 12, 2023, 01:35:46 PM by HPsauce »
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banger

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Re: Windows 11 - occasional hang at boot
« Reply #8 on: September 12, 2023, 05:44:07 PM »

Welcome.  :blush:
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Tim
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Alex Atkin UK

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Re: Windows 11 - occasional hang at boot
« Reply #9 on: September 13, 2023, 07:43:01 AM »

Its interesting as I just started having random hangs during cold boots on 22H2.

Granted it was right after fiddling with PBO so possibly an issue with too low voltage curve, but it seems odd as if I power up a second time it then works fine and not had any lockups once in the OS despite playing Starfield all day.
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HPsauce

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Re: Windows 11 - occasional hang at boot
« Reply #10 on: September 14, 2023, 05:40:12 PM »

Oddly I've just had a hang on the same system which is now on 22H2. Restarted fine after a power cycle.

As I have another identical system (apart from slightly slower processors) I might swap the PSUs over if it happens again; it takes seconds on a Z600 workstation.
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HPsauce

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Re: Windows 11 - occasional hang at boot
« Reply #11 on: September 23, 2023, 12:32:40 PM »

Weirdly it's done it twice (out of scores of boots) in the last week, but not had time to swap the PSUs yet, too much on!
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Alex Atkin UK

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Re: Windows 11 - occasional hang at boot
« Reply #12 on: September 23, 2023, 04:44:02 PM »

I'm actually not sure if mine is hanging or an issue with if I turn the PC on before the TV has fully booted up.  But I'd tend to side with hanging, given it should detect the TV even if it booted with no display.
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parkdale

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Re: Windows 11 - occasional hang at boot
« Reply #13 on: September 23, 2023, 05:27:20 PM »

Have you looked at the "Reliability Monitor"?  Just type 'Rel' in Search
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HPsauce

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Re: Windows 11 - occasional hang at boot
« Reply #14 on: September 24, 2023, 02:31:24 PM »

Interesting, thanks, wasn't aware of that.
Only significant "red cross" items relate to Microsoft Teams.
As I don't use or need it I'll get rid of it.
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