I'd like a real live Microsoft employee to respond. Microsoft needs to fix this broken update and make it install properly ASAP.
Windows Update KB5066835 Doesn't Work
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(44.800000000000004, 15%, 14%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EHM%3C/text%3E%3C/svg%3E)
Help Me
45
Reputation points
Please fix update KB5066835. It doesn't work at all
Windows for home | Windows 11 | Windows update
{count} votes
-
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(284.8, 19%, 37%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EHG%3C/text%3E%3C/svg%3E)
Hervé GUICHON 125 Reputation points2025-10-19T21:31:56.24+00:00 Same issue on the french version since yesterday. I have tried all solutions described below by "John DeV "(command-line DISM, sfc...) to no avail.... will try update from the full KB package (3 Gb !)
-
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(291.2, 60%, 38%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EZ%3C/text%3E%3C/svg%3E)
Zid 0 Reputation points2025-10-22T21:24:51.8066667+00:00 Same issue.... Download and install manually also failed
-
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(140.8, 88%, 23%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EOY%3C/text%3E%3C/svg%3E)
OMKAR YADAV 0 Reputation points2025-10-25T07:34:15.0033333+00:00 same issue
Sign in to comment
5 answers
Sort by: Most helpful
-
Help Me 45 Reputation points
2025-10-16T00:57:06.54+00:00 -
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(297.6, 77%, 38%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EB%3C/text%3E%3C/svg%3E)
Bauer 0 Reputation points2025-10-16T14:28:06.0033333+00:00 Don't update to KB5066835, it has pretty big issues currently, especially with printing and other things, it is causing a massive headache.
https://kimiyoya.com/update-error-kb5066835/
For those who have updated and have issues, to uninstall:
wusa /uninstall /kb:5066835 (run in CMD as elevated)
Sign in to comment -
-
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(89.60000000000001, 18%, 18%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJD%3C/text%3E%3C/svg%3E)
John DeV 147K Reputation points Independent Advisor2025-10-16T00:28:23.1133333+00:00 Hi, good day!
Please let me know if you have tried the methods below.
- Disable or uninstall any third-party VPN and Antivirus program to prevent it from interfering with the update.
- Run the Windows Update Troubleshooter Open Settings > System > Troubleshoot > Other troubleshooters > Windows Update > Run troubleshooter
- Make sure Windows Update and Background Intelligent Transfer services are available and running.
Press Windows key+R to open Run then type: services.msc
Press Enter to open Services app
Double-click Background Intelligent Transfer Service.
If the Startup status lists Stopped, click Start and then click OK. If the status is Running, right click then select Restart
Double-click Windows Update.
If the Startup status lists Stopped, click Start and then click OK. If the status is Running, right click then select Restart
- Please try to run SFC and DISM to check for any system errors and corrupted files. https://support.microsoft.com/windows/using-system-file-checker-in-windows-365e0031-36b1-6031-f804-8fd86e0ef4ca
- Reset Windows Update components manually https://www.elevenforum.com/t/reset-windows-update-in-windows-11.3808/ After that, restart your computer
- Here's a direct download link of KB5066835 from Microsoft Update Catalog. Download and install the update manually. https://catalog.sf.dl.delivery.mp.microsoft.com/filestreamingservice/files/7c0d1a12-9944-4b26-bed7-a722c040d631/public/windows11.0-kb5066835-x64_2f193bc50987a9c27e42eceeb90648af19cc813a.msu
If the issue persists, open Settings > System > Recovery.
Few things to check on the PC
- Unplug all external peripherals except for the Mouse, Keyboard, and LAN cable before starting
- Disable or uninstall any third-party Antivirus program to prevent it from interfering with the upgrade
Under Fix problems using Windows Update, click Reinstall Now
Once completed, your system will restart.
I look forward to receiving your update and I'm willing to collaborate with you till we resolve the issue. Do keep me informed by clicking "Add comment" below.
Standard Disclaimer: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.
-
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(28.799999999999997, 52%, 12%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EN%3C/text%3E%3C/svg%3E)
Nata 25 Reputation points2025-10-19T23:11:22.5133333+00:00 Same issue here and I tried everything, even manually installing doesn't work for me.
-
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(297.6, 49%, 38%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ERM%3C/text%3E%3C/svg%3E)
Robert Morris 5 Reputation points2025-10-20T00:06:18.1633333+00:00 Yeah, this hasn't worked.
Sign in to comment -
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(86.4, 23%, 18%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMG%3C/text%3E%3C/svg%3E)
Mark Greenbaum 5 Reputation points2025-10-22T00:36:25.5233333+00:00 Here's your answer. The update is faulty. Who knows what else is wrong with it?
I have no intention of AGAIN, resetting Windows 11 which would require I go back and re-reinstall all my apps.
October 2025 Patch Tuesday won’t install due to 0x800f0922, 0x800f0983, 0x800f081f, 0x80071a2d and 0x800f0991. If you run into installation errors, we recommend downloading the patch from Update Catalog. Or just use Media Creation Tool and perform an in-place upgrade of 25H2. Don’t try your luck with internet solutions. They don’t work.
A bug blocks File Explorer document previews in the Preview pane, falsely citing a security issue.
Some Logitech peripherals won’t work.
Mouse and keyboard not working in WinRE (Windows Recovery Environment).
-
Hervé GUICHON 125 Reputation points
2025-10-23T05:56:37.3166667+00:00 "A bug blocks File Explorer document previews in the Preview pane, falsely citing a security issue."
This bug is still there in 25H2 !
Sign in to comment -
-
Hervé GUICHON 125 Reputation points
2025-10-20T10:15:12.7633333+00:00 The solution with "system/recovery/update recovery " (or sthg lile that, I have a french version) seems to work for me !
-
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(166.4, 72%, 26%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ENK%3C/text%3E%3C/svg%3E)
Nor Kem 0 Reputation points2025-10-25T20:21:04.29+00:00 Nach deaktivierung von VPN Problem gelöst.