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Windows 10 build 10586.104 now available for PC with changelog

Microsoft is pushing out a cumulative OS update (KB3135173) for Windows 10 on PC. As we reported earlier, this is a standard 'Patch Tuesday' update with fixes and optimizations for the Windows 10 desktop operating system and is available to all users.

Those on the Windows Insider program are on the Redstone (RS1) branch and will likely see a different set of OS security fixes and improvements and will be brought up to the same level for patching.

We reported last week that this update should bump the OS build to Windows 10 10586.104 or .105 and after reboot post installation users should be able to verify the version change (type 'Winver' in the search bar to check).

Microsoft has yet to detail what is in this update, but past practices suggest it will be vaguely worded. We'll update this article when the Knowledge Base is posted.

Update: Here is the full changelog as posted by Microsoft (opens in new tab)

  • Fixed issues with authentication, update installation, and operating system installation.
  • Fixed issue with Microsoft Edge browser caching visited URLs while using InPrivate browsing.
  • Fixed issue that didn't allow simultaneous install of apps from the Windows Store and updates from Windows Update.
  • Fixed issue that delayed the availability of songs added to the Groove Music app in Windows 10 Mobile.
  • Improved security in the Windows kernel.
  • Fixed security issues that could allow remote code execution when malware is run on a target system.
  • Fixed security issues in Microsoft Edge and Internet Explorer 11 that could allow code from a malicious website to be installed and run on a device.
  • Fixed additional issues with the Windows UX, Windows 10 Mobile, Internet Explorer 11, Microsoft Edge, and taskbar.
  • Fixed additional security issues with .NET Framework, Windows Journal, Active Directory Federation Services, NPS Radius Server, kernel-mode drivers, and WebDAV.

For those with a Surface device, there should be no new firmware posted as Microsoft publishes those separately from the Patch Tuesday OS updates. However, we are expecting Microsoft to address current Surface Pro 4 and Surface Book issues in the coming weeks.

There is no word when the .104 update will ship for Windows 10 Mobile, but the referenced changelog obviously mentions it. The update is likely to come in the next few days.

To check for today's update just head into All Settings > Update & security > Windows Update > Check for updates.

Daniel Rubino
Executive Editor

Daniel Rubino is the Executive Editor of Windows Central, head reviewer, podcast co-host, and analyst. He has been covering Microsoft here since 2007, back when this site was called WMExperts (and later Windows Phone Central). His interests include Windows, Microsoft Surface, laptops, next-gen computing, and arguing with people on the internet.

91 Comments
  • How about Windows 10 mobile? Will the Lumia 830 be eligible for update?
  • Yes.
  • I think in an article earlier they said Windows 10 mobile would be coming soon as well.
  • Last week they thought both pc and mobile would be updated the same day
  • Not this upgrade currently.
  • Soon™
  • Now maybe it got added later, but the bottom mentions "in the next couple days."
  • I have finally installed W10 on my work Lumia 830 (through Insider program) and am quite happy with it. Everything works - my Exchange email, Skype for Business, all my apps, car BT... the only glitch I have noticed was that, in 7 days, my phone "blinked" twice. As in, screen went off/black for less than a second and back on with no actual interruption in operations. I did an upgrade, kept everything. I've read some people had performance/stability/power issues before they did factory reset, but so far I didn't see a reason for such extreme measure. Can't be bothered with installing and setting up everything from scratch. Maybe I do it when final W10 for Lumia 830 is released, though it doesn't appear I'll have too many reasons for that. My phone seems as fast and smooth as it was. Battery goes for 2 days. I could get 3rd day before upgrade, but then I'm playing with phone much more since upgrade - so I think battery, in general, will perform as it did under 8.1
  • I'm using W10M on my 830, and the blinking screen problem has been happening to me too. I heard from somewhere in the forums that this is normal for 830 users.
  • Be careful guys as my wifes lumia 830 has got stuck in a boot loop and will not go past the nokia logo screen and vibrates by the time my wife informed me the battery went flat due to constantly boot looping  It will not charge so hoping it is not bricked is still under warrenty so took it back to carphone warehouse hopefully they will be able to charge battery and then run the windows device recovery tool 
  • Hopefully there is a fix for apps crashing?.... Dammm...
  • What happened with the firmware update for Lumia 950 last week. Still haven't seen it? Uk here unlocked
  • Same for 950 XL in France. Still waiting.
  • Interesting I'll check windows recovery!
  • still no with recovery
  • Watch out, 'When for W10M?' comments incoming.
    Looking forward to the update on my laptop. Is there a change log or is the Windows central app just not showing me a link to the changelog? I'd wish MS would make a better job in providing change logs on time.
  • Refresh.
  • Lumia 640, win. 10???
  • Not today!
  • Microsoft has now also made update history page http://windows.microsoft.com/en-us/windows-10/update-history-windows-10 Seems they do listen sometimes!
  • This was what I came here for. Thanks for the info.
  • It's a step in the right direction, but the update details are pretty generic. You could probably copy-paste most of this list for every minor future update and it would be accurate. Now where's that mobile update?
  • Windows 10 is giving me blue screen errors and reboot loops since last three-four builds. I have temporarily suspended their installation :_(
  • Check your drivers or hardware, those cause 90% of the issues.Also BSOD have a diagnostic code and will do a memory dump that will help you narrow down the exact error. 
  • Yeah. There's a driver called dxgkrnl.sys which causes the error. An IT Pro at Microsoft answers checked my memory dump files which I provided him and he posted several tests but none worked. I updated my Laptop's BIOS (for no reason) from the manufacturer website and the BSODs and reboot loops have since minimized but do occur at least once a in day. Formatting is the best option left, maybe, for me.
  • Have you tried at least doing system restore or maybe doing a reset? Btw, why your post is getting downvotes?
  • I had the same problem. It was because of Kaspersky, I uninstalled it and now all is fine.
  • There is an update on Microsoft site for Windows 10 update list. There it has been listed what's new in the update. And after the update we are likely to see .104 after the main 10586 version.
  • This update includes quality improvements and security fixes. No new operating system features are being introduced this month. Key changes in this update include: Fixed issues with authentication, update installation, and operating system installation. Fixed issue with Microsoft Edge browser caching visited URLs while using InPrivate browsing. Fixed issue that didn't allow simultaneous install of apps from the Windows Store and updates from Windows Update. Fixed issue that delayed the availability of songs added to the Groove Music app in Windows 10 Mobile. Improved security in the Windows kernel. Fixed security issues that could allow remote code execution when malware is run on a target system. Fixed security issues in Microsoft Edge and Internet Explorer 11 that could allow code from a malicious website to be installed and run on a device. Fixed additional issues with the Windows UX, Windows 10 Mobile, Internet Explorer 11, Microsoft Edge, and taskbar. Fixed additional security issues with .NET Framework, Windows Journal, Active Directory Federation Services, NPS Radius Server, kernel-mode drivers, and WebDAV. Version: 10586.104
  • Nice changelog.
  • Updating........
  • When for Lumia 1520...???
  • Win 10 desktop??
  • The changelog indicates that we will get 10286.104 on mobile too. I hope it is today.
     
  • Unlikely. I have mentioned in the past that they tend to avoid that for now to mitigate any issues. Once PC is done and they are satisfied there is nothing wrong, they can turn their attention to mobile.
  • Adblock foe edge so that I can say goodbye to Firefox
  • Firefox's latest version is too solid to be replaced by MS Edge at this moment! Yes, but you can certainly say goodbye to Google Chrome (in case you're using it) as it has become a memory hog!
  • Microsoft, could you please solve the RAM hogging issue in Edge? I love your browser but please, please improve RAM management! (8GB of RAM here)
  • I have a notebook with 2GB and I agree with you.I try to open a new tab and didn't respond or crushing all the time.
  • Why all the mobile questions in this PC related article ???
  • Exactly. Jeez, it's like working in a crèche sometimes. All impatient, and when it does come, they will find something to moan about and threaten to jump ship (again!!)
  • In fairness, the changelog from Microsoft specifically calls out fixes in Mobile too. Hence the questions.
  • Microsoft posted a change log..interesting..
  • ​WILL THE LUMIA 950 GET THIS UPDATE?????
  • YES PROBABLY AND IT PERMANENTLY ENABLES CAPITAL LETTERS....SWEET!
  • Hahahaha.
  • When the replacment mobo with X86 processor ships, so soon.
  • Hope they fixed the random app launch issues.
  • Geez my Pro4 locked during the reboot
  • Why aren't they removing the W8/8.1 style slide out menus like the network pane on the sign in screen and the volume/brightness vertical sliders which appear when you use Fn+Navigation arrows on a laptop?!
  • When will be 'ad blocking' coming to edge browser?
  • Soon.
  • What a colossal mess this Nadella's baby is. Sinofsky needs to return asap.
  • Sinofsky? The one everyone who works at Microsoft could not stand and who set back Microsoft 5 years with the flop of Windows 8...you want him back? Tip: Meet some actual employees at Microsoft. I mean like 5, 10 or 15 at least. Talk to them about the Sinofsky era. Then come back here and repeat your statement. You are clearly speaking out of ignorance here.
  • To be fair, Surface would probably not be where it is today if it were not for the radical tablet-first approach of Windows 8.x.
  • Couldn't the counter argument be made that Sinofsky's windows team is much more faster than Belfiore's/Myerson windows mobile team? It's been like this for the past 5 years
  • Has anyone had any issues with Cortana on the last Insider update for mobile? Mine Keeps crashing and the voiced search does not work!
  • No problem may need rest the phone
  • Cortana and Bing are a complete disaster on Windows 10 Mobile, even on the 950.  Inconsistent response, Cortana cuts off mid-sentence, hokey search results or simply nothing at all.
  • FIX: Alpha testing including cursory changelogs with releases.
  • Still nothing in the UK. When will the UK get this update???    Does anyone know??    
  • Im clicking on update update and there is nothing here in the UK showing for this new update. I wonder where it has got too?? Anyone else in the UK got this update yet??? Let me know.   
  • No, not showing yet on my pc in UK. I just keep on getting the update KB3119142 since 5th Feb and it updates 4 copies everyday.
  • Get it from Windows Update Catalog website, you'll need to use IE or Edge, enter the kb number in the search Posted via the Windows Central App for Android
  • Are you off your meds again?
  • Wasn't there supposed to be Mobile build this week?  I would guessed today would be it.
  • Delayed. Whoda thought
  • 10586.107 available NOW. You can stop b*tching now.
  • Any idea on the size Posted via the Windows Central App for Android
  • Got it 229 for 32bit and 429 for 64 I think Posted via the Windows Central App for Android
  • It's cumulative, so it depends on your system.
  • So one of the fixes is for groove mobile. Update "soon"
  • I just updated my Surface Pro 4 and my gaming PC, now i wait for the mobile release to update my Lumia 950XL, keep them coming Microsoft!
  • Perhaps that and the WC beta will be on the same day.
  • Wc won't release til April.
  • Since like three or four builds back, I'm unable to install them because of a supposed incompatibility with the Broadcom wireless adapter, but I do have the latest version of the driver. (Btw, I'm using a Windows 10 installation using BootCamp assistant in a MacBook Air).
  • you just identified your problem ... it starts and ends with that Shiny Shiny logo.
  • Looks to be mostly focused on security. Nothing wrong with that.
  • Nice to see they appear to be taking the Groove issues seriously.
  • Gabe said no build today for pc and phone 49 mins ago. But what's going on????!!!
  • This is a cumulative update, not a new build.
  • I'm not seeing the update on any of my test machines.
  • Mine installed about 6 hours ago Keep checking on WU          
  • Is this update is for Windows Insider or for roll out?
  • Public
  • This is great. Having no change really grind my gears.
  • I just wish downloading from Windows store improves. My PC, tablet, L1520 & L925 all run smoothly without glitches people encounter except for awfully slow store updates. Solutions posted for the PC and tablets don't work for me; hard resetting the phones hasn't either!!!
  • People reads the title and goes directly to comment section. WTH?
  • Update is not showing yet on my PC. Any tips?
  • Odd, but on my SP3 I have Windows 10 Pro Insider Preview OS version 14257.1000. Does that seem right? Here is a screen shot http://1drv.ms/1XjF8jH 
  • Be careful guys as my wifes lumia 830 has got stuck in a boot loop and will not go past the nokia logo screen and vibrates by the time my wife informed me the battery went flat due to constantly boot looping  It will not charge so hoping it is not bricked is still under warrenty so took it back to carphone warehouse hopefully they will be able to charge battery and then run the windows device recovery tool