Fix Windows Update Error 0x80070643 on Windows 10

Fix Windows Update Error 0x80070643 on Windows 10
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Today we will fix error Windows Defender Windows Update Error 0x80070643, first make sure you uninstall any 3rd Party Anti viruses or Anti malware programs.
So what causes this windows defender kb2267602 0x80070643 error? There many reasons why you may encounter error 0x800070643. Here are some of the main reasons why it happens
Failed to install latest Windows updates
Damaged or corrupt operating system files.
Corrupt or Damaged .Net Framework.
Installed third-party antivirus/malware software.
Corrupt system registry or Errors in Registry.
Virus/Malware infection.
Corrupt or disabled Microsoft Source Engine Ose.exe
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1) Click on the Start menu.
Type “cmd“. Right click on Command Prompt and select Run as administrator.
In Command Prompt, type “sfc /scannow” and press Enter.
DISM /Online /Cleanup-Image /RestoreHealth
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2) Microsoft .NET Framework Repair Tool
www.microsoft.com/en-gb/downl...
--------------------------------------------------------------------
Reset Windows Updates Components
3) Click on the Start menu.
Type “cmd“. Right click on Command Prompt and select Run as administrator.
In Command Prompt, type
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
--------------------------------------------------------------
Use Windows Defender Command Line Tool to Update the Signatures
Click on the Start menu.
Type “cmd“. Right click on Command Prompt and select Run as administrator.
In Command Prompt, type:
“%PROGRAMFILES%\Windows Defender\MPCMDRUN.exe” -RemoveDefinitions -All
“%PROGRAMFILES%\Windows Defender\MPCMDRUN.exe” -SignatureUpdate
"%ProgramFiles%\Windows Defender\MPCMDRUN.exe" -SignatureUpdate -MMPC
----------------------------------------------------------
Fix Microsoft Silverlight
Download Microsoft’ Silverlight Fix it Utility
download.microsoft.com/downloa...
Once uninstalled download latest version
www.microsoft.com/getsilverlig...
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#0x80070643 #FixWindowsUpdate #FixError0x80070643 #Windows10

[@Britec09]

▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ T H A N K Y O U F O R W A T C H I N G ! P L E A S E L I K E A N D S U B S C R I B E ! ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬

[@MrSavour]

I tried sfc /scannow, it says it found corrupt files but was unable to fix. What should I do?

[@giancarloaizon9068]

this was 3 years ago and still more relevant than any of troubleshooting BS I've seen. Thanks man

[@CesareVesdani]

I just can't believe that such an advanced operating system like Windows 10 has so many bugs and glitches. Why is Windows 10 so buggy?

[@AreeshFlower]

I swear, it's the buggiest OS I've had. Never did I have so many problems with Windows 7 :(

[@DaveGara95]

@@AreeshFlower Have you ever used Windows Vista?

[@AreeshFlower]

Ængelicht Rockett nope

[@micahguyan7443]

MacOS feels like a dream compared to Windows 10 lol.

[@svb6406]

Windows is garbage

[@zenutopia2k708]

This happened to me today. Good, thorough video. After watching it, and taking notes, before attempting your fixes, I decided to try Windows Update one more time first, and lo and behold, luckily, it was suddenly working again, with no errors! I had read that sometimes this problem "will fix itself eventually", but was skeptical until this happened. Even so, thank you for making helpful videos like this. Nice to know what to do, should this happen again. UPDATE: This happened to me again, and you're video helped me fix it. Thank you!

[@Nav0x]

Thank you from New Brunswick, Canada as resolved my recurring Windows 10 update issue. New subscriber now...

[@izzy_1020]

My computer didn't want to do the definitions removal for some reason, but I followed the rest of the video and ended up fixing my initial issue anyway. Thanks a lot!

[@ollychap1985]

Hope you have a great Christmas and thanks for all your videos this year

[@Britec09]

You too Oliver

[@jeffhalebopp]

This is why I am still using windows 7. I am waiting for MS to actually fix bugs instead of adding new features to windows 10 and ignoring reliability. They are on the wrong path. I am a big fan of Britec and glad he is here to help windows 10 users. Thumbs up as always.

[@Britec09]

Thanks Jeff

[@omonie4860]

im sayin, i like windows 7 better.

[@Entutu]

Thank you very much ! The first one worked like a charm ! You have new sub

[@stephandroid4389]

Thanks again for a great video, have a safe and wonderful Christmas.

[@Britec09]

You too

[@harryburton959]

Great video. Merry Christmas Brian.

[@Britec09]

Marry Christmas Harry

[@philipowen7799]

Thanks very much for this very useful info on windows updates. Glad to hear Brian that you are sounding much better, Have a great Xmas and a very happy New Year

[@Britec09]

I feel a lot better Merry Christmas

[@AreeshFlower]

Followed the first three things and it worked! Thanks a bunch!

[@George-mk7lp]

Thanks for one more great video and Happy Christmas Briteoc09

[@Britec09]

Merry Christmas

[@dvirmizrahi6358]

love your voice and it fix my issue with the windows thanks so much

[@RobertKeenanComp-U-Right]

Another Windows 10 repair nugget , thanks Brian. May you have a blessed Christmas & Prosperous New Year!

[@Britec09]

Merry Christmas

[@ninogen]

Much appreciated. Your video was a great help to solve the problem. It's fixed!

[@michaelredd4051]

Very helpful. Thanks, Brian.

[@Britec09]

You're welcome

[@Cyhyraeths]

I just got an 'unexpected store exception' BSOD on my PC. I notice there was an update 2 days ago. Any Ideas if it's related? I've checked my drives they're all 100% good, so it wasn't that.

[@ShadowzGSD]

How safe is it to fully update windows 10 now? with all the recent problems I have not updated for months

[@leathan7]

omg omg omg sfc /scannow worked for me, and thats like the oldest one in the book i was purposly avoiding it! thanks!!

[@KimMason]

I'm not sure which part fixed it, but this fixed my borked Windows Update. Thanks!

[@terrymcgill43]

Very useful information for fixing Windows Update errors, well done Brian.

[@Britec09]

Thanks Terry

[@leoniedejong9549]

The problem I have, is that from updates that are already installed weeks or month ago, I get a message that there is a download error 0x80070643 and they can't be installed.Looks like I'm still protected, but my laptop (10 years old) go's through the update again when I restart. So at the end I suspended my updates for 7 days. No problems but also more vulnerable.

[@psychic-lizard]

Holy crap the last one actually worked!!! Thank you so much!

[@air_cooler]

What ever the error just go to the installed updates there.. U can see the failed update just click it goes to the microsoft page ..follow the instructions there or install it manually.

[@jamesderoc6717]

cannot rename software dist acces denied , yes cmd was run as admin

[@mohammadsab4478]

Hi Britec Ive some how managed to hold 1809 by setting on metered connection but 1809 is on my downloading list and it says that u can download it whenever u get out of metered connection. I just want to remove 1809 from download list and receive other updates. Do you have any suggestions?

[@True_GXD]

2021 and still works! Great video!

[@kwisatzhaderach9087]

Absolutely brilliant, thank you so much.

[@kdog3427]

I appreciate you making this video and all, but I am really frustrated that people just give random things to do instead of telling you what this error message ACTUALLY MEANS. I would have so much better direction in solving this problem if I knew what this actually meant.

[@hollyibns2037]

Thanx but the files in my C:\Windows\System32\catroot2 Folder cannot be deleted and the error 0x80070643 remains :(

[@RoseSn]

I tried every step but couldn't delete the files in catroot2 even tho I did everything correct. Can anybody help here?

[@pog2824]

Thanks man. You did the god job. The trouble shooter helped me :D

[@lil-kanna8325]

i know this video is old but when i do the "%ProgramFiles%\Windows Defender\MPCMDRUN.exe" -SignatureUpdate -MMPC its comes back after 42% saying windows resource protectiopn could not perform the requested operation

[@Robert-zm5gj]

my troubleshooter isn t finding any problems is loading from 1 hour what i need to do?

[@Stevenco9124]

I followed your instructions but nothing worked, only mistake i think i made was i renamed software distribution to software distribution.bakk with extra k. After that i couldnt delete the contents of the folders as you said. I still followed all the other steps till the end and my pc is still having same update issues. I REALLY FEEL BAD ABOUT THIS.

[@MomotarosSWORD]

Please help, I cannot delete folder cus it says they are open in another program.

[@MO-iv3nm]

@@No12l00k4 Same message here...

[@TheAlexCKelly]

Get “Access Denied” when trying to rename. Any fix? Am using admin and all other steps worked

[@fernandodasilva8201]

Unfortunately :/ my windows defender still persists to an error 0x80070643 after doing everything following your help :( should I leave it and install another anti virus? Thank you!

[@charleserickson9356]

britech09 can you show a fix for notepad to run the find an find next command to fix xbox networking on windows 10 ?

[@coooooooolguy]

OK! I am still on win 10 1803 at my PC and prevent it from installing any more updates as when fix the 1809 and other updates. I will make the updates work again that is for me. As for the new update fix. Thanks for sharing the info with all of us. I am looking forward to change my HDD to SDD soon as my HDD physical issues and bad sectors started to show up for using win 10 on it. So will do the whole new windows on new SSD disk soon.

[@AcidRush]

Thank you very much! The first one worked for me.

[@spmj1251]

Very straight forward tutorial brian. Have a happy boxing day and happy new year

[@Britec09]

Same to you

[@GeeFamous92]

Thanks so much, didnt have to do all the step but the first one.

[@donsinneroff]

my dism.exe / online / cleanup-image /restorehealth just stuck on 84.1% and nothing going on, what can I do ?

[@brownnicebakery2428]

at the last few steps whereby , I tried to delete the files in the folder catroot2 (I did stop the cryptsvc service), the files could not be deleted, because, they are still being used by windows, what could be the problem? if they are not deleted, could it be a major problem whereby the error update would still persist?

[@MO-iv3nm]

i have same issue

[@tarekmahmudbhuiyan7368]

I HAVE AN ISSUE SINCE THE LATEST UPDATE.MY ACTION CENTER STOPPED WORKING. I HAVE TRIED MOST POPULAR METHODS FOUND ON KZbin OR IN DIFFERENT FORUMS. BUT NOTHING SEEMS TO WORK. COULD YOU HELP ME HERE? PERHAPS ANY POINTER?

[@prm414]

I did this and got Error 0x80070005, I now need to find out how to cure this one.

[@FrancisZerbib]

:)

[@levidile]

Ok. Thanks friend helped a lot I am from Brazil and won another written hugs!

[@Smood47]

When I try to do the remove definitions step I get error '0x80070005' and I am using administrator command prompt.

[@tsrk._old]

the fact is that even if i followed your steps very carefully, no one worked :(

[@svb6406]

same

[@karloozvacic9451]

Mate you are a lifesavier thank you so much!!!!

[@SmokyTech20]

i am getting this error Update for Microsoft Visual Studio 2012 (KB2781514) tired everything still don't work

[@Manuelexe-bl5eq]

MUCHISIMAS GRACIAS HERMANO LA VERDAD ES QUE BUSQUÉ MUCHOS VIDEOS Y NINGUNO ME RESULTADORON COMO EL TUYO, SE TE AGRADECE.... . THANK YOU VERY MUCH BROTHER THE TRUTH IS THAT I LOOKED FOR MANY VIDEOS AND NONE RESULTED ME LIKE YOURS, THANK YOU ...

[@juniorkalipatama527]

good to hear your back there bro you sound different before all good now i hear you were bit crook but good to hear your back

[@Britec09]

Thanks

[@melkeetv833]

Do i need to connect it to the internet?

[@acesusss]

I CANT DELETE THE CONTENTS OF CATROOT2, it says folder is in use. i dont have any open folder.

[@harsh_g2543]

When i run the first command it shows 'no engine/signature is currently loaded' Help me what i should do

[@mediaapps]

I get No engine/signature is currently loaded.

[@mister-why]

the cmd commands didn't work for me and the troubleshooter is stuck at "Checking for pending restart"

[@YukyDoodle]

First method worked! Rarely does anything work first time (why Im here in the first place) so thank you!

[@evasconcelos]

Problem solved, windows update returned to work normally. Good job ... Thanks

[@fila2pro535]

Thank you so much! That actually worked!!!!

[@daniquebaker91]

i did everything step by step ,..... and i still have Error 0x80070643 edit: found the problem ,.... my updates were set to delay for 365 days set both back to 0 and bam there we went ,.... so your fix was working !!!!!! many thanks

[@jls.mp4]

Where do you check your update delay?

[@nipstyler]

Thanks this was my problem too.

[@ronnyb5890]

hey brian,i find the windows troubleshooter crap,it never fixed or even gave clues about my sounblaster soundcard that did'nt work so i had to find it myself,after a lot of things,my soundcard is now working as should be pfff,happy hollidays brian

[@Britec09]

Happy holidays

[@Waky18]

Hey there Ronny B - I am encountering a very similar problem with my soundcard an Xonar AE 7.1 by Asus - do you recall what worked for ya ?

[@Valthak]

Windows Defender Command Line Tool was the solution for me. Thank you very much! ^__^

[@MysticNinjaSoul]

Having issues installing Microsoft Visual C++ 2015, 2017, 2019 distributable and 2015-2019 distributable keep getting error 0x80070643

[@lamanter474]

dude same its been 10 months any fix

[@bhargavphukan8930]

Thanks, the 1'st step resolved my error!

[@ChiefADFP]

steps 1-4 fail, I try, later on, MS keep placing update out there (kp4023057) and keep failing to install? what a shame I hate doing the math for tech don't know how to release good update files installers

[@michaeldunn5362]

i have that error but tryed everything in this video but no success.. i must have done something wrong ... plse help!!!

[@trendisyourfriend]

For me updating Windows Defender Signatures fix a problem.

[@TheBlazingFalcon]

So i reset my computer and now it endlessly goes to a blue screen that says it is resetting the computer for me . I think I might’ve bricked my computer , I don’t know what to do at this point

[@valentin.p6436]

I can't delete catroot2 it say's me that the files is open somewhere else

[@jrancier92]

Same here :(

[@tsrk._old]

when I do the signature update for mpcmdrun.exe it returns me an another error (0x800106BA)

[@WOTBlitzNews]

me too

[@xdarkdragonx2727]

me too

[@chadandrew1170]

Me too

[@brad4448]

Thank YOU first one worked for me

[@Mario_QC]

not working at all for Update for Windows Security platform - KB5007651 (version 1.0.2109.27002) Installation error - 0x80070643 very desappointed...

[@catscantfly]

resourse protection could not start the repair service

[@DeraPlays]

didnt work for me even though i do everything you did... but when i had to fix the corrup files it said it was unable to do it

[@shinybrain9975]

did u fix it

[@iRedFox]

Thanks, “sfc /scannow” worked first time.

[@defaultj8679]

It didn't work for me is still showing me error someone please help me.

[@jaysii1146]

repair tool works like a charm! thank u very much!

[@AT93x]

i get access denied when i try to do the rename step? can u help please.

[@ukaszp571]

I can't delete files from the folder, there's something about using files in a cryptographic service

[@Ana-py7ue]

Thanks mate, it still works 😉

[@darryltoombs1076]

Windows 1809 has broken sharing between computers on a network, any ideas Brian on how to get that working again or will it have to be fixed by Microsoft?

[@Britec09]

I still on 1803, I will take a look at this problem.

[@darryltoombs1076]

@@Britec09 Thanks mate, you're a legend :-) Apart from that issue I haven't had any problems with 1809.

[@DalmationProductions]

Wait didn't you try resetting your computer cause that somehow fixes issues

[@darryltoombs1076]

Dalmation /KCS Productions That doesn’t help and tried that first but thanks for the input. This has only come up since 1809 and something has changed but not sure what. I have dug around a bit into probable causes and solutions but no joy yet so have handed it over to Brian as he knows way more than me and hopefully he can find out what the problem is.

[@darryltoombs1076]

@@Britec09 Hi Brian, just to let you know that I have fixed the problem with me sharing between computers on my network at home after my 1809 update. After watching your video on Windows defender I thought I would give it a try as it seemed to work wonderfully when you tested it so I uninstalled Avast then low and behold my sharing was back in action. One thing with defender that I did find out is unless you are super paranoid, do not enable Controlled Folder Access as it will not allow you to save anything unless you have given that folder or whatever program you are using, permission to write to your disc which had me scratching my head for a little while. Hopefully this helps some people and saves you the trouble of fixing that. Now all I have to do is save all my pennies (about all I have lol) and get an SSD but that's gonna take some time :-) Love ya work and keep it up.

[@satur9dreamer]

I recieved an 0x80070005 error when trying to remove definitions in cmd??

[@lunafreyjaschmitt3657]

great vid! sfc /scannow was the fix indeed

[@blackfiddler8705]

i get: signature failed with hr=800106BA when trying to do that signature update

[@MarekIwaszkiewiczMusic]

What helped me is uninstalling update files from "Apps & features"

[@AT93x]

can u explain more?

[@MarekIwaszkiewiczMusic]

@@AT93x hi I don't remember well what was that about. But you could find it in 'add or remove programs'. Among your apps there should be update files.

[@hazwanghazali8069]

Thanks a lot mate! its working!

[@sanjaybora2333]

tq sir I like your content and this trick is work very well tq once again

[@MultiMurphy19]

Hi mate . thanks for the help . It worked .

[@burgboy7200]

hi, thanks for the Good work you are doing,. please "wuauserv" is deleted from my laptop what can i do ?, When i do "net stop wuauserv" i get the service name is invalid. and i also get this error 0x80070424. When i rum "sc delete wuauserv " i get openservice FAILLED 1060

[@soumendrakumarmishra6694]

thank u so much bro...it worked ..may god bless you

[@WutTheDeuceGaming]

Tried every option, downloads then installs, then gives me the same download error.

[@dx5tune]

another solution install updates manually with windows update assistant In this way, you will have installed the latest update 22h2. and windows update works again(note:updates takes too long, you have to wait patiently)

[@kuyakenken5503]

The .Net repair framework works for me! Thanks!!

[@lewisvoltaire5493]

I wish that spending all this time watching this video and following these steps fixed it for me... But it didn't :( Having the same issue others are mentioning - it's saying that the files are running that I'm trying to delete from catroot2 so I can't delete them. I tried every single step here and still it won't update :(

[@FBistanbul34]

same :\

[@cubii8126]

same here

[@estudiogogo5903]

sfc scannow worked for me thx ! (i did all the other ones none worked)