Unsolved
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1794
February 13th, 2025 10:51
XPS 9520 BIOS 1.29.0 BIOS causes HAL events
XPS 15 9520
Since updating to BIOS 1.29.0, one of the various issues is repeated HAL events logged trying to query the RTC.
Rolling back the BIOS results in no more logged events
The hardware real-time clock was not queried because evaluation of the ACPI Time and Alarm Device method failed. Status: 0xC00000BB.
The hardware real-time clock was not set because evaluation of the ACPI Time and Alarm Device method failed. Status: 0xC00000BB. 
No Events found!
RadReg
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1 Message
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February 18th, 2025 13:35
Looking for an answer as well. This is a clean install of windows11ENT. All non Microsoft services disabled.
GoNz0
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February 18th, 2025 15:49
They messed something up as the problem came back as soon as windows update decided to put it back on.
(edited)
wh25ct
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February 24th, 2025 19:35
Having the same issues on a user's machine. Confirmed Dell BIOS is on the latest version.
Did anyone ever find a solution to this?
GoNz0
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February 25th, 2025 15:05
@wh25ct Only by downgrading and disabling WU until Dell admit there is an issue and fix it, I asked the live chat to look at this post, but as per usual, bugger all is being done at the moment.
GoNz0
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March 12th, 2025 10:00
BIOS 1,30 is out, it looks like they silently patched it.
GoNz0
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March 12th, 2025 16:02
Scrap that, useless as ever, bug is still there.
GoNz0
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April 15th, 2025 10:52
1.31 has been on an hour and so far no HAL errors
GoNz0
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April 16th, 2025 10:29
Absolute joke, HAL faults back...
Come on Dell, sort your shite out.
GoNz0
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July 11th, 2025 15:04
Thanks Dell, for doing all about this and not even having the decency to reply to my post for help
(edited)