Share via

Windows update fails with Error 0x800f0900

Anonymous
2019-05-15T11:44:42+00:00

Unable to install both latest cumulative updates.

The installation of 2019-04 Cumulative Update for Windows 10 Version 1803 for x64-based Systems (KB4493437) failed yesterday with Error 0x800f0900 and today the installation of 2019-05 Cumulative Update for Windows 10 Version 1803 for x64-based Systems (KB4499167) failed too with same Error 0x800f0900.

I ran the Troubleshoot app on Windows Update. It fixed Service registration missing or corrupt. However, running Windows update still failed with same Error 0x800f0900.

Restarted the computer several times and search the internet for fixes without success.

Please help. Thanks, Blaise

Windows for home | Windows 10 | Windows update

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

0 comments
Answer accepted by question author
  1. Kapil Arya 36,681 Reputation points Volunteer Moderator
    2020-07-20T11:37:23+00:00

    Hello,

    Please refer these suggestions:

    1. Run System File Checker scan:
    • Search for 'command prompt' using Cortana or Windows Search.
    • From results, right click on Command Prompt and select Run as administrator.
    • Type sfc /scannow command and press Enter key.
    • Let the command complete and then reboot the machine.
    1. If SFC scan fails, try these steps:
    • Search for 'windows powershell' using Cortana or Windows Search.
    • From results, choose Windows PowerShell and select Run as administrator.
    • Then type/paste following and press Enter key

    Repair-WindowsImage -Online -RestoreHealth

    • Let the command complete, restart your system then.
    1. Reset Windows Update database:

    Open administrative Command Prompt and type following commands one-by-one followed by Enter key.

    net stop wuauserv

    net stop cryptSvc

    net stop bits

    net stop msiserver

    Ren C:\Windows\SoftwareDistribution SoftwareDistribution.old

    Ren C:\Windows\System32\catroot2 Catroot2.old

    net start wuauserv

    net start cryptSvc

    net start bits

    net start msiserver

    1. Reset Windows Update components: https://docs.microsoft.com/en-us/windows/deployment/update/windows-update-resources
    2. Install updates manually using this guide: https://www.kapilarya.com/manually-download-and-install-windows-updates-in-windows-10

    Hope this helps!

    Note: Included link in this reply refers to blog post by a trusted Microsoft MVP.

    27 people found this answer helpful.
    0 comments
Answer accepted by question author
  1. Vijay A. Verma 104.7K Reputation points Volunteer Moderator
    2019-05-15T11:48:00+00:00

    Hi BlaiseNZ

    Greetings! I am Vijay, an Independent Advisor. I am here to work with you on this problem.

    KB4499167 replaces KB4493437 as KB4499167 is latest. I recommend that you do a manual update for this KB4499167. To know the KB number - Windows Key+i to invoke Settings > Update & Security > See which updates are getting installed. If this information is not available here > Click View installed update history to see which updates have been installed.

    1. Windows Key+X > Windows Powershell (Admin)

    Type following (or copy and paste following) one by one and Enter

    net stop wuauserv

    net stop cryptSvc

    net stop bits

    net stop msiserver

    Ren C:\Windows\SoftwareDistribution SoftwareDistribution.old

    Ren C:\Windows\System32\catroot2 Catroot2.old

    net start wuauserv

    net start cryptSvc

    net start bits

    net start msiserver

    1. Type following in Windows Start Search box (Cortana) and hit Enter %systemroot%\Logs\CBS > Rename CBS.Log to something else.

    If it doesn't allow you to rename - Type services in Windows Start Search box > Click Services > Scroll down to find the Windows Modules Installer service and double-click on it > Set its startup type to Manual > Reboot your computer

    Go to C:\Windows\Logs\CBS > Rename CBS.Log > Reboot your computer > Then go back into the Services App and set Windows Modules Installer Service back to Automatic Startup (Note CBS log files contain information about windows update, SFC etc)

    (Source - https://partnersupport.microsoft.com/en-us/par_...)

    1. You can download the updates from Microsoft Catalog and update manually. Search for relevant KB in the Catalog.

    Microsoft Catalog - https://www.catalog.update.microsoft.com/Home.aspx

    Do let me know if you require any further help on this. Will be glad to help you.

    17 people found this answer helpful.
    0 comments

4 additional answers

Sort by: Most helpful
Most helpful Newest Oldest
  1. Anonymous
    2019-05-15T11:46:33+00:00

    Hi Blaise,

    I'm Stefano an Independent Advisor here to help you. I suggest you to reset Windows Update, After having performed a disk cleanup:

    1. Open "File Explorer"
    2. Click on "This PC"
    3. Right click on "C:"
    4. Click on "Proprieties"
    5. Click on "Clean-up disk"
    6. Click on "Clean up system files"
    7. Select every option in the list, but not "Download"
    8. Click on "OK"

    Once ended, please try this :

    1. Type "Powershell" in Windows search bar
    2. Right click on "Powershell"
    3. Click on "Run as Administrator"
    4. Type :

    "net stop wuauserv" without quotes and press ENTER.
    "net stop cryptSvc" without quotes and press ENTER.
    "net stop bits" without quotes and press ENTER.
    "net stop msiserver" without quotes and press ENTER.
    "Ren C:\Windows\SoftwareDistribution SoftwareDistribution.old" without quotes and press ENTER.
    "Ren C:\Windows\System32\catroot2 Catroot2.old" without quotes and press ENTER.
    "net start wuauserv" without quotes and press ENTER.
    "net start cryptSvc" without quotes and press ENTER.
    "net start bits" without quotes and press ENTER.
    "net start msiserver" without quotes and press ENTER.

    Now check for updates.

    1 person found this answer helpful.
    0 comments
  2. Anonymous
    2019-05-15T17:36:06+00:00

    Thanks for your help but it did not work. I followed all the steps but still could not get update KB4499167 to download via Windows Update.

    1 person found this answer helpful.
    0 comments
  3. Anonymous
    2019-05-15T18:01:06+00:00

    Thanks for the help. I manually downloaded the update and successfully installed it. Problem solved.

    0 comments