.net framework 3.5 installation fails w/ error code: 0x800F0954

2017-12-08

Question

_{Friday, December 8, 2017 8:15 PM | 1 vote}

Title. Downloads for about 2 seconds then fails. Tried the DISM command

Dism /online /enable-feature /featurename:NetFX3 /All /Source:D:\sources\sxs

Get the same error code.

Windows 10 1709

All replies (85)

_{Friday, December 8, 2017 8:37 PM ✅Answered | 16 votes}

Used the powershell command

Add-WindowsCapability –Online -Name NetFx3~~~~ –Source D:\sources\sxs

which worked.

_{Monday, December 11, 2017 6:57 AM}

Hi CFFraser,

Adding features (including .NET 3.5) to Windows 10

DISM.EXE /Online /Get-Capabilities

Get-WindowsCapability -Online

https://blogs.technet.microsoft.com/mniehaus/2015/08/31/adding-features-including-net-3-5-to-windows-10/

Glad to hear that you have solved it and thank you for sharing it here, it will be helpful to other community members who have same questions.

Regards,

Please remember to mark the replies as answers if they help.
If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

_{Friday, January 19, 2018 1:11 PM | 1 vote}

I get the same error in the Powershell window (running as admin):

PS C:\Windows\system32> Add-WindowsCapability –Online -Name NetFx3~~~~ –Source D:\sources\sxs
Add-WindowsCapability : Add-WindowsCapability failed. Error code = 0x800f0954
At line:1 char:1

Add-WindowsCapability –Online -Name NetFx3~~~~ –Source D:\sources\sxs

+ CategoryInfo : NotSpecified: (:) [Add-WindowsCapability], COMException
+ FullyQualifiedErrorId : Microsoft.Dism.Commands.AddWindowsCapabilityCommand

I also tried inserting the original Windows 10 DVD, which is the R: drive, and changed the D: to R: in the command above. Same result.

Any further suggestions?

Colin

_{Monday, January 22, 2018 7:41 PM | 7 votes}

For me, the solution was to use the full name of the source file, instead of just the path. Not sure why that was needed, but I had found a post that suggested it (don't recall where now, sorry), tried it, and sure enough it solved my problem with very similar symptoms:

Instead of using this (which did not work for me): Dism /online /enable-feature /featurename:NetFX3 /All /Source:R:\sources\sxs

I used this, which did work for me: dism /online /add-package /packagepath:R:\sources\sxs\microsoft-windows-netfx3-ondemand-package.cab

Where R is the drive letter for my Blu-Ray/DVD-ROM drive. Prior to finding the solution, I had tried many variants on the command, which all failed, because Windows couldn't find the source file. I believe the key difference is inclusion of the filename, not the other differences from the command above.

Colin

_{Monday, January 22, 2018 7:54 PM}

Is the source correct?

DISM /Online /Enable-Feature /FeatureName:NetFx3 /All /LimitAccess /Source:"d:\sources\sxs"

_{Monday, February 5, 2018 12:24 AM}

The "Add-WindowsCapability" command worked for me.

Thank you :-)

Stephane

_{Wednesday, February 14, 2018 5:17 PM | 1 vote}

Hi,

I got an answer that worked from another post

Dism.exe /online /enable-feature /featurename:NetFX3 /source:C:\ /LimitAccess

Copy first the CAB files from media locally to the root of C:\ drive and 100% success!

_{Thursday, February 15, 2018 10:02 AM | 126 votes}

You may receive this error when trying to install DotNet (.net) on Windows 10 and you are using a WSUS server. This error may occur of the .net installer is not approved in WSUS.

As a temporary workaround, change the registry key “UseWUServer” to 0. It is located at:

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU

After the registry change, restart the Windows Update service. You should be able to install .net at this time. Once done you should change this key back to its original value (or wait and allow Group Policy to do it for you.)

Source => https://www.westechs.com/error-0x800f0954-when-installing-dot-net-on-windows-10/

_{Thursday, February 22, 2018 7:38 AM | 1 vote}

I solve the problem this way. Thank you.

Thanks

_{Monday, February 26, 2018 8:29 AM}

You sir have saved me.

Ive been having this problem for wel over a year.

i salute you

_{Tuesday, March 6, 2018 8:05 PM}

You Sir, are a life saver. This is definitely the perfect fix for me.

Thank you.

_{Wednesday, March 7, 2018 4:26 PM}

great thanks a lot....

_{Friday, March 9, 2018 3:32 PM | 3 votes}

Here's what worked for me. I saw something about CBS in the dism log so I cleaned up CBS logs.

net stop trustedinstaller

Delete all files from C:\Windows\Logs\CBS

net start trustedinstaller

Then I ran Dism.exe /online /enable-feature /featurename:NetFX3 /source:C:\

I had already copied the sxs files to the root of C: based on someone else's post here, but it probably would work with the source in other locations.

Thanks everyone.

_{Monday, March 12, 2018 3:03 PM}

That registry worked for me too! Thanks for the fix.

Thanks,

Joe B

_{Thursday, March 15, 2018 4:56 PM}

This combined with the PS command worked for me :)

_{Friday, March 16, 2018 4:36 PM}

Thank you so much!!! This solved the issue for me!

_{Thursday, March 29, 2018 5:32 AM | 4 votes}

this works for me to turn on .net framework 2&3 on Windows10 64bit, thanks.

_{Thursday, March 29, 2018 9:32 AM}

Perfect. thanks. worked

_{Tuesday, April 3, 2018 5:23 AM | 1 vote}

Thanks.

<snip

Here's what worked for me. I saw something about CBS in the dism log so I cleaned up CBS logs.

net stop trustedinstaller

Delete all files from C:\Windows\Logs\CBS

net start trustedinstaller

Then I ran Dism.exe /online /enable-feature /featurename:NetFX3 /source:C:\

I had already copied the sxs files to the root of C: based on someone else's post here, but it probably would work with the source in other locations.

</snip>

This worked for me as well.

_{Wednesday, April 4, 2018 7:57 PM}

i had to copy it to c:/temp or any other folder, because trying to access c: directly was giving me an error, even running cmd as administrator.

_{Friday, May 4, 2018 12:11 PM}

I tried everything above, and this finally fixed my issue!

Thanks.

_{Tuesday, May 8, 2018 10:30 AM}

Good job!
Thankssssssssssssssssssssssssssssssss

_{Wednesday, May 9, 2018 2:23 PM}

Like other people trying to get this resolved, I tried the registry change and it worked - THANKYOU!

_{Thursday, May 10, 2018 4:34 PM}

Thanks Sir... this works for me and my team mates... Windows10 64bit,

_{Saturday, May 26, 2018 11:26 AM}

One thing I have noticed - If you have the window open that says installation failed when trying to add it through "Turn Windows features on and off" and you try to run the scripts, they will still give the 0x800f0954 error. Closing that window and then rerunning the script worked fine. Guessing it was locking a file that was needed.

_{Thursday, June 21, 2018 6:35 PM}

Thank you @GranteStateColin for this! I kept running the PowerShell commands above and it kept erroring out for me, so I finally came across your fix with using the full name of the source file and it worked! Yaaaaay! If only I could get those 4 hours of my life back.

-Jessica

_{Thursday, July 5, 2018 12:41 PM}

Absolutely perfect, had tried everything else but only this worked for me.

Thanks

_{Wednesday, July 11, 2018 3:40 PM}

This solution solve my problem. Thanks a lot!

_{Wednesday, July 18, 2018 7:14 PM}

Your powershell command worked for me too.

Thanks

_{Wednesday, July 25, 2018 9:32 PM}

Thanks so much. This and the PowerShell combined worked for me!

_{Friday, August 17, 2018 9:24 AM}

worked, thanks.

_{Friday, August 17, 2018 1:38 PM}

Thank you!! Works 100%

_{Thursday, August 23, 2018 8:21 AM}

Thank you.

_{Wednesday, September 5, 2018 8:38 AM}

Thank you Flavio!

Great solution!

_{Friday, September 21, 2018 7:52 PM}

MS, why do you have to make this so difficult?

_{Thursday, September 27, 2018 8:21 AM}

Thanks a million.

Worked for me. Disabling WSUS update policy allowed me to download the .net 3.5 software.

A Wright

_{Thursday, September 27, 2018 2:07 PM}

I got the same problem when I tried to add .NET 3.5 by go to "Turn Windows features on or off", got Error code 0x800F0954. Tried run

DISM.EXE /Online /Add-Capability /CapabilityName:NetFx3~~~~

Still the same error, now it is possible to read error log in C:\Windows\Logs\DISM\dism.log:

xxxx, Info                  DISM   DISM Package Manager: PID=12956 TID=12296 Further logs for online package and feature related operations can be found at %WINDIR%\logs\CBS\cbs.log - CPackageManagerCLIHandler::ExecuteCmdLine
xxxx, Error                 DISM   DISM.EXE: DISM Package Manager processed the command line but failed. HRESULT=800F0954

Go to C:\Windows\Logs\CBS\CBS.log, found

xxxx, Info                  CBS    DWLD:Failed to do Windows update search [HRESULT = 0x800f0954 - CBS_E_INVALID_WINDOWS_UPDATE_COUNT_WSUS]
xxxx, Info                  CBS    FC:   WindowsUpdateDownloadFromUUP returns. [0x800F0954]

Now search for "CBS_E_INVALID_WINDOWS_UPDATE_COUNT_WSUS" will lead to solution that change "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU the key UseWUServer to 0".

_{Tuesday, October 9, 2018 10:40 PM}

Brilliant, this worked for me. Thanks.

_{Thursday, October 11, 2018 2:28 PM}

Perfect! Thank you I solve the problem.

_{Tuesday, October 16, 2018 8:13 AM}

This worked for me.

_{Wednesday, October 17, 2018 12:21 PM}

Worked Well for me ! Thanks !

_{Friday, October 19, 2018 7:00 PM}

I had the same problem, but with optional feature on Windows 10 1809

Add-WindowsCapability -Online Rsat.ActiveDirectory.DS-LDS.Tools~~~~0.0.1.0

the reg key and WU service restart helped.

Thanks !!

_{Tuesday, October 23, 2018 4:36 PM}

Muchas gracias... sirvió...

_{Tuesday, October 23, 2018 5:03 PM}

Really works. Thanks.

_{Wednesday, November 14, 2018 8:32 PM}

Using the full path and filename also worked for me.

_{Friday, December 7, 2018 4:57 PM}

Thanks. the changing of registry solved my issue.

_{Wednesday, December 19, 2018 2:05 PM}

Thanks for the workaround by disabling WSUS. I've inherited a legacy environment and I'm building myself a Windows 10 VM so I don't have to touch their existing systems. Wondered why I couldn't install .NET v3.5 which I need for vSphere. Saved me a lot of hassle!

_{Friday, December 28, 2018 10:24 AM}

thank you a lot, it's the only one working for my so far.

_{Thursday, January 3, 2019 9:33 AM}

Worked perfectly for me Thank you so much for help.

_{Friday, January 4, 2019 3:54 AM}

Worked for me. Thanks

_{Tuesday, January 8, 2019 3:35 PM}

This worked for me, thank you very much :)

_{Thursday, January 10, 2019 5:05 PM}

I salute you too. This worked. Months trying to figure it out. The error is very misleading. It was in fact WSUS. THANK YOU

_{Wednesday, January 16, 2019 4:41 PM}

This worked, thanks so much!

_{Saturday, January 19, 2019 3:31 PM}

Helped me too!! Yipee!!

_{Monday, January 21, 2019 12:17 PM}

worked for me

_{Friday, January 25, 2019 10:08 AM}

Yes, also worked for me. Thank you.

_{Friday, January 25, 2019 3:52 PM}

I found another solution that may be easier for some (a GUI solution, rather than a PS solution) and works for installing all Windows components, not just the .NET Framework: IF you run into this on a computer getting updates through WSUS, instead of directly from MS, then:

change the registry key “UseWUServer” to 0

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU

This will let you install any of the Windows Optional features from the GUI.

After you're done, be sure to run gpupdate /force or manually restore that key to 1 after you have finished your installs so you can resume getting updates from the WSUS server.

Colin

_{Monday, January 28, 2019 3:35 PM}

Thanks so much! This worked for me. I'm running W10 1809 x64.

_{Monday, February 25, 2019 10:39 PM}

Thank you, this worked for me!!!

_{Monday, March 4, 2019 12:51 AM}

Legend!!! That worked, I can now do my job!!

_{Wednesday, March 20, 2019 3:44 PM}

I am trying to install Skylight by Sierra Wireless on a new Dell Rugged Extreme Tablet with M$ Win 10, so I can use the WWAN card & SIM I installed, but I cannot get it to work. I read through other posts about this error, but I cannot get their resolutions to work. I've changed the Registry Key for UseWUServer to "0". Where can I get the necessary .NET 3.5 setup files without the DISM (I don't have access to it)?

_{Wednesday, March 20, 2019 4:23 PM}

Ok, I'm a newbie here. I just read that I could try running...

I deleted all files in C:\Windows\Logs\CBS

I ran Windows PowerShell as admin

PS C:\Users\JD_S>net start trustedinstaller

PS C:\Users\JD_S>Dism.exe /online /enable-feature /featurename:NetFX /source:C:\

The response was...

Deployment Image Servicing and Management tool

Version: 10.0.17763.1

Image Version: 10.0.17763.379

Enabling feature(s)

[==================100.0%===============]

Error: 0x800f0950

DISM failed. No operation was performed.

For more information, review the log file.

The DISM log file can be found at C:\WINDOWS\Logs\DISM\dism.log

So, apparently, I have access to DISM, but I do not have access to the CAB files referred to above. I guess I should have asked that instead. Anyone know where I can find and download them to drop onto my C:\ root drive?

_{Friday, March 22, 2019 6:21 PM}

This was it, even with it in the allowed list on the WSUS server it still would not work had to bypass it.

_{Friday, March 22, 2019 6:25 PM}

This worked for me after many other methods failed. Thanks!

_{Friday, March 29, 2019 1:42 PM}

Thank you!! Thank you!! Thank you!!

Such a simple, intuitive solution. This should win an award.

Trashed a computer trying to add .netFramework3.5 back after a user removed this feature. Tried all of the other DISM BS, which worked for previous builds, but not 1809. Wish I would have found this a lot sooner. Now the trick is to remember it for the next time:)

_{Tuesday, April 9, 2019 6:04 PM}

Thank you sir!

_{Thursday, April 18, 2019 12:31 PM}

This did the trick for me. Thanks!

_{Wednesday, May 1, 2019 8:56 PM}

This was it. Worked like a charm. Many thanks!!

_{Friday, May 3, 2019 10:12 AM}

This solution worked for me as well - thanks for this

_{Friday, May 3, 2019 6:57 PM}

Thank you changing the registry as you advised I was able to install it using the PowerShell command

Add-WindowsCapability –Online -Name NetFx3~~~~ –Source D:\sources\sxs

_{Monday, May 6, 2019 4:56 PM}

Reg hack worked on my brand new Dell lappy..thanks much!

_{Wednesday, May 29, 2019 7:30 PM}

man, you saved my life.

_{Wednesday, July 17, 2019 6:45 AM}

Legend

This solved my issue

_{Tuesday, August 6, 2019 9:25 AM}

Thank you, Flafio!

That's the perfect solution for me and my friends.

In addition, it solved some other problems with updates.

_{Tuesday, August 6, 2019 11:04 AM}

Even after more than 1 year, the Flavio's suggestion saved me! THX

_{Tuesday, August 6, 2019 2:48 PM}

This solved my problem installing .Net 2.0

_{Friday, August 23, 2019 10:53 AM}

I had similar issue downloading .netFX3 and went through many online web pages for a solution. The one webpage below solved the issue.

https://www.prajwaldesai.com/rsat-tools-installation-error-0x800f0954/

_{Friday, August 23, 2019 5:10 PM}

This guy!!! I tried everything before, but your fix did the trick!! Thanks!

_{Tuesday, October 22, 2019 5:10 PM}

Flávio Campelo thank you this worked!

_{Wednesday, December 18, 2019 6:35 PM}

Thanks, tha's what worked for me

_{Friday, December 20, 2019 10:20 AM}

How do I use powershell command?

_{Friday, December 20, 2019 4:10 PM}

"How do I use powershell command?"
open Powershell and enter the command.

_{Friday, December 20, 2019 6:46 PM}

Thank you so much. You saved my day

_{Thursday, January 16, 2020 6:28 PM}

This worked for us. Very simple solution which matched our situation (domain computers w/ WSUS server on domain).

Thanks

_{Tuesday, February 11, 2020 6:11 PM}

It is 2020 and this fix still works! Thanks for sharing. As the others have indicated, I've tried EVERYTHING under the sun.

P.S. Thanks MS for making the error code so obscurer for those in the WSUS environment.

Share via

.net framework 3.5 installation fails w/ error code: 0x800F0954

Question

All replies (85)

Additional resources