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Over the past week I've tried several ways to update my laptop, all reverting back to 23H2. I've tried updating through the Windows Update panel, Updating through troubleshooting, Creating an ISO to mount. I've run the the 'dism..' and 'sfc..' pair many times. I've tried to look at the install log files and they don't seem very useful to me (the error log file gives a dozen errors)
My first ISO install described above ended failing with the Windows Install Panel error message: 0xC1900101-0x40017
I tried updating my drivers through Windows and all seemed 'Up to date'. Completely useless since I can't use Windows update to check for me.
Finally, used HP to check my drivers and it found 3 that needed updating so did that. I don't have antivirus software that I know of and just a mouse attached to my machine on the ISO installs.
Tried the ISO install again(2nd time) and it hung overnight on a blank screen...turned off the computer the next morn & brought it back up again and it reverted back to 23H2. Windows 11 setup panel displayed the same error message as the first time: 0xC1900101-0x40017 (I saw chatter online that this might be some kind of display driver problem...sigh)
This morning I went to the Intel site and it found and updated my graphics/display card, mouse, and bluetooth drivers. I found I had malwarebytes still on the system and removed it.
Redownloaded the ISO install file and it still failed with 0xC1900101-0x40017
I am seriously at my wits end on this. I've looked at the setuperr.log and can share the entire file if needed. This is the first 8 lines:
2026-07-23 12:06:14, Error MOUPG FCDCATQuery: Unexpected response format!
2026-07-23 12:06:14, Error MOUPG CFCDCATQuery::FormatAPIOutputAsJSONString(284): Result = 0xC1900501
2026-07-23 12:06:14, Error MOUPG CFCDCATQuery::Query(229): Result = 0xC1900501
2026-07-23 12:06:14, Error MOUPG CFCAcquirerDCAT::QueryWeb(1030): Result = 0xC1900501
2026-07-23 12:06:14, Error MOUPG CFCAcquirerDCAT::Download(1363): Result = 0xC1900501
2026-07-23 12:06:14, Error MOUPG CFCPayloadDU::Download(274): Result = 0xC1900501
2026-07-23 12:06:14, Error MOUPG DUSetup: Error on downloading SetupDU Payload: [0xC1900501]
2026-07-23 12:06:14, Error MOUPG CDlpActionDU::ExecuteFacilitatorDUSetup(2220): Result = 0xC1900501
When I searched for some of these errors, it seems like the install is being blocked, possibly, from the server? Is there a way to do an offline update? I'm sorry this isn't "brief" :/ If it matters, my computer is HP ENVY 360 running Windows 11 for a couple of years with no problem. Thanks.
Please run the fixlist below.
Fixlist.txt to the same folder as FRST64.exe.NOTE: The fixlist.txt script was written specifically for this user and for use on that particular machine. It is not recommended to run it on another machine, and don't run the same fixlist.txt more than once.
Okay...just saw these new instructions. Will do.
Ran what you requested.
Here is the log file requested: https://1drv.ms/t/c/45c10cb65fa72b3c/IQD4P9klTGk8Q4PGxxlDl_1bAQWUKjprMLk1sm2dg6Q2FP0?e=VDk26c
Ok. Upgrade to 25H2 now. Let me know how it goes.
That worked! I appreciate you taking the time and effort to get my computer back to updating. You have taught me better ways to check for offending drivers. :) I've made notes in case this happens again.
Once again, thank you.
You're most welcome.
If all is resolved, feel free to mark the answer for this thread. Otherwise, please let me know if there's anything else I can help you with.
0xC1900101 errors are usually driver-related. Please upload the following setup log files to OneDrive or GoFile.io and post the link here:
C:\$WINDOWS.~BT\Sources\Panther\setupact.log
C:\$WINDOWS.~BT\Sources\Rollback\setupact.log
Add the files to a zip archive and upload it.
Enable Memory Integrity. To do so, go to Windows Security → Device security → Core isolation details → Memory integrity. If the page lists any incompatible drivers, please post a screenshot.
Oh! This was so helpful. Here is the screenshot ( I left out the title of the panel so I could include all of them.
There are so many incompatible drivers. Please share your Farbar scan logs for analysis.
FRST64.exe to FRST64English.exe.Note: If Microsoft Edge or Chrome mislabels the Farbar Scanner executable as PUA/malware, choose to keep it by tapping … in the bottom bar, choosing Keep, and then choosing Keep anyway in the dialog that appears. See this screenshot. It's a safe tool used in most antimalware forums.
Here is a link to the zip file with the two setupact.log files you requested:
https://1drv.ms/u/c/45c10cb65fa72b3c/IQCHs1gYdo7aS52ud62UuwlLAb9hye4mTnHd9txSFCptj4w?e=fxlrrt
Link to files from the Farbar Recovery Scan Tool:
https://1drv.ms/u/c/45c10cb65fa72b3c/IQDsMdI7V4GaQZFPfdb4IRIYAW6QrbyCPMtYrtpHutTpB-k?e=PHyRuy
So I think I found where 7 of these offending drivers come from. I will uninstall the 2 offending programs -- they are from some video capture software I was using to convert VHS family movies to digital copies. I'm not sure the uninstall will remove the drivers...but, I can see if they do.
I've gotten rid of all the offending drivers except 4. The removal and uninstall programs did not remove them from my system....Hmmm....
Honestly can't get rid of the last two eMPIA Technology drivers. Why is this so hard to hold up an update in such a catastrophic fashion? Okay, I'll stop my garbage trucking.
I sensed they had to do with VLC Player (Which I could never get to work on my laptop anyway), so I just now removed that program, but they didn't get removed (as other programs I just removed did). I can't find them registered in the Device Manager or PNPUtil tool. I see random sites chat about downloading a program to remove them or the dreaded registry editing...but I don't do registry work without guidance of some sort.
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Is the bios up to date?
Try the Windows 11 Installation Assistant Download Windows 11 - Microsoft to see if it gives any extra info on the failure.
Yes, I did that yesterday before I started using the ISO installs. I did try the Installation Assistant before trying ISO. It failed as well. I forgot to put it in my verbose post.
